2 10 15608 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Marwan, Marwan Date A point or period of time associated with an event in the lifecycle of the resource 2009-12-01 Description An account of the resource Steam reforming of ethanol to H2 using ZnO catalyst with promotor metal, i.e. copper or metal group VIII (Pd, Pt and Ni) has been investigated. Catalyst’s performances are tested further at micro reactor operating at atmosphere pressure. Ethanol solution 20% is injected to reactor at rate of 2 ml/jam and is mixed with nitrogen flow at 25 ml/menit. XRD analysis shows active phases existence of each promotor for produced catalyst. Reaction product includes H2, CO2, and a nonidentified component. Selectivity of H2 fromation depends on chosen promotor metal types, where the selectifity decreases as follows: Pt > Pd > Cu ≈ Ni. Reaction temperature and promotor concentration also influence selectifity H2. For catalyst 1% Pd/ZnO and 1% Pt/ZnO, selectivity H2 was optimum at temperature reaction 450oC. Whereas Pd promotor concentration’s increasing from 1% to 5% improves H2 selectivity.Keywords: ethanol, hidrogen, steam reforming, ZnO Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/77 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/77/72 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 7, No 2 (2009): Jurnal Rekayasa Kimia & Lingkungan 2356-1661 1412-5064 Title A name given to the resource Kinerja Katalis Paduan ZnO dengan Tembaga dan Logam-Logam Golongan VIII pada Steam Reforming Etanol menjadi Hidrogen Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Hartuti, Sri Supardan, Muhammad Dani Date A point or period of time associated with an event in the lifecycle of the resource 2012-06-01 Description An account of the resource The study on extraction of oleoresin from ginger by using ultrasonic was carried out in order to obtain the optimum condition of extraction process. The effect of ratio of ginger to solvent (ethanol, X1), extraction temperature (X2), and extraction duration (X3) are studied on the yield of oleoresin. Response surface design method with Central Composite Design (CCD) was used to obtain a mathematical model which describes the relationship between the yield of ginger oleoresin and influencing variables. The experimental results indicate that the optimum condition of extraction which yield of oleoresin of 11.026% was found at ratio of ginger to ethanol (X1) of 1:4.68 gr.ml-1, extraction temperature (X2) of 420 OC, and extraction duration (X3) of 79 minutes.Keywords: extraction, response surface method, ginger oleoresin, ultrasonic Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/251 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/251/237 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 9, No 1 (2012): Jurnal Rekayasa Kimia & Lingkungan; 30-35 2356-1661 1412-5064 Title A name given to the resource Optimasi Proses Ekstraksi Oleoresin Jahe (Zingiber officinale Rosc) Menggunakan Ultrasonik Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Saiful, Saiful Date A point or period of time associated with an event in the lifecycle of the resource 2011-06-01 Description An account of the resource An application of EVAL based mixed matrix membrane adsorbers containing a strongcation exchange resins (Lewatit SP 112 WS) for capturing of Lysozyme (LZ) has been investigated.The preparation and performance of the mixed matrix membrane adsorbers is studied with 1-octanol as additive. The membranes in this study are prepared by immersion precipitation out of a DMSO solution containing 14% EVAL and with or without 14% 1-octanol. All membranes contain 65% resin based on dry solids. The morphology of the membranes are characterized using scanning electron microscopy.The membrane structure demonstrated open and interconnected porous structure with large resin particles are distributed in membrane structure. The MMM adsorber proved high adsorption capacity for capturing and concentrating LZ in feed solution. The Mixed matrix membranes (MMM) concept was anticipated as a moderate process with an increasedcapacity and a maximum adsorption capacity of 166 mg LZ/g membrane. The MMM act in protein separations both as protein purifier and concentrator and is an attractive alternative for packed bed systems because of its high capacity, high throughput, robustness, and ease of scaling up.Keywords: Mixed Matrix Membrane (MMM), Lysozyme (LZ), Adsorption, Membrane adsorber Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/242 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/242/228 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 8, No 1 (2011): Jurnal Rekayasa Kimia & Lingkungan 2356-1661 1412-5064 Title A name given to the resource Performance of Mixed Matrix Membrane Adsorbers for Lysozyme Separation Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Faisal, Muhammad Irvan, Irvan Atsuta, Yoichi Daimon, Hiroyuki Fujie, Koichi Date A point or period of time associated with an event in the lifecycle of the resource 2006-06-01 Description An account of the resource The supercritical CO2 extraction of microbial quinones from activated sludge samples obtained from various activated sludge was investigated and compared to the conventional method using organic solvent extraction. The extraction was carried out in a supercritical fluid extraction (SFE) system in the temperature range of 25 to75 oC and the pressure up to 30 MPa. Different extraction conditions, such as the temperature, pressure, extraction time and modifier were employed to maximize the SFE efficiency. Significant amount of microbial quinones (ubiquinones and menaquinones) could be extracted rapidly with supercritical CO2. Results on the value of diversity and dissimilarity suggested that the SFE with supercritical CO2 extraction was a reliable technique for quinones extraction. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/1084 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/1084/1017 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 5, No 1 (2006): Jurnal Rekayasa Kimia & Lingkungan; 36-41 2356-1661 1412-5064 Subject The topic of the resource quinone profile; microbial community structure; supercritical CO2; dissimilarity; diversity Title A name given to the resource Rapid Determination of Microbial Quinones using Supercritical CO2 Extraction Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Aprilia, Sri Amin, Amri Date A point or period of time associated with an event in the lifecycle of the resource 2011-12-01 Description An account of the resource Asymmetric ultrafiltration (UF) membranes were prepared from three kinds of polymer namely polyacrilonitryle (PAN), polysufone (PS), and cellulose acetate (CA) by phase inversion method. Water was used as non-solvent. These membranes were charachterized for ultrafiltration membranes i.e measurement of solvent permeability (Lp), Molecular Weight Cut Off membranes (MWCO) with various molecular weight of solute dekstran, and morphology of the membrane by Scanning Electron Microscopy (SEM). SEM analysis includes surface area and cross section area. Membranes with polymer low concentration 10% as PAN-1, PS-1 and CA-1 have the larger Lp from PAN-2, PS-2, and CA-2 that have concentration 15%  for the same type of polymer. These occur because of the larger pore membrane than high concentration of polymer. SEM analysis showed a homogeneous distribution in the surface membrane and pore of membran like sponge structure from cross section area. Membranes CA-1, CA-2, FS-1 and FS-2 have Molecular Weight Cut off (MWCO) for the solute dextran 40000 Da. For PS-2 and PS-2 membranes have MWCO of dextran above 20000 Da.Keywords: ultrafiltration membrane, solvent permeability coeficient, MWCO, membrane morphology Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/746 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/746/700 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 8, No 2 (2011): Jurnal Rekayasa Kimia & Lingkungan; 84-88 2356-1661 1412-5064 Title A name given to the resource Sintesis dan Karakterisasi Membran untuk Proses Ultrafiltrasi Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Suhendrayatna, Suhendrayatna Marwan, Marwan Munawar, Edi Zaki, Muhammad Date A point or period of time associated with an event in the lifecycle of the resource 2009-06-01 Description An account of the resource Water quality assessment in the tsunami-affected areas conducted in Meuraxa and Kutaradja sub-districts in the area of Banda Aceh City. Water samples were collected in October 2006 from dug wells of tsunami-affected areas. These were characterized for various physical and chemical parameters. Water quality in the selected areas has shown that the surface water was contaminated due to the tsunami. Total Dissolved Solid, Total Suspended Solid, Acidity, and salinity were high in the affected areas indicating saline water intrusion into surface water tables. Dug wells in the highly affected locations showed higher values of heavy metal ions like Mn, Pb, Cu, Fe, Zn, and Cu compared to the reference points. No ion Hg was found in all samples. Keywords: Banda Aceh, heavy metals, tsunami, water quality Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/59 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/59/54 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan 2356-1661 1412-5064 Title A name given to the resource Water Quality Assessment in the Tsunami Areas of Banda Aceh Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Haji, Abdul Gani Date A point or period of time associated with an event in the lifecycle of the resource 2013-06-01 Description An account of the resource Chemical components of liquid smoke which is produced via pyrolisis of palm oil solid waste have been analyzed by using gas chromatography mass spectroscopy (GC-MS). Solid waste consists of shell, empty fruit bunch, and palm fiber. Solid waste was obtained from palm oil manufactory in Tanjung Semantok,  Aceh province. The objective of this research was to investigate the chemical components in liquid smoke obtained from various palm oil solid waste. Sample was pyrolyzed at 500°C for 5 hours by using tube furnace reactor type 21100 which is equipped by thermolyne as temperature adjustment. The yield of pyrolysis from shell, empty fruit bunch and palm fiber are 52,02; 29,59; and 34,88%, respectively. The results showed that 27; 13 and 11 compounds of chemical were observed in liquid smoke obtained by pyrolysis of shell, empty fruit bunch, and palm fiber, respectively. Overall, acetic acid and phenol are the highest concentration of chemical obtained in this research.Keywords: palm oil solid waste, pyrolysis, liquid smoke, chemical compound Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/779 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/779/724 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 9, No 3 (2013): Jurnal Rekayasa Kimia & Lingkungan 2356-1661 1412-5064 Title A name given to the resource Komponen Kimia Asap Cair Hasil Pirolisis Limbah Padat Kelapa Sawit Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Marlina, Marlina Date A point or period of time associated with an event in the lifecycle of the resource 2007-12-01 Description An account of the resource Membran poliuretan (PU) dibuat dengan cara mereaksikan asam lemak bebas dan asam lemak yang telah teroksidasi yang berasal dari minyak jarak dengan 2,4-tolulen diisosianat (TDI). Komposisi monomer, temperatur dan waktu polimerisasi divariasikan. Membran PU dicetak di atas plat kaca, yang diteruskan dengan proses koagulasi menggunakan air pada temperatur kamar. Hasil penelitian menunjukkan bahwa kondisi optimum sintesa membran PU dari asam lemak bebas hasil oksidasi-metilasi diperoleh pada perbandingan 1,2 : 0,56 (mol/mol), temperatur 100 oC dan waktu polimerisasi 5 menit. Membran yang dihasilkan bersifat transparan, elastis, homogen, kuat dan mempunyai titik transisi gelas 127,4 oC dan ketahanan tarik 41,7 MPa. Pengukuran spektrum inframerah (IR) dari polimer yang dihasilkan menunjukkan masih adanya puncak –CO dari –NCO pada bilangan gelombang 2272,9 cm-1, sedangkan serapan terhadap gugus –OH pada bilangan gelombang 3100-3300 cm-1 telah hilang. Dari data di atas terlihat bahwa reaksi polimerisasi pada sintesa membran PU dari asam lemak bebas teroksidasi telah berlangsung dengan sempurna.Kata kunci: asam lemak bebas, minyak jarak, poliuretan, 2,4-tolulen diisosianat (TDI). Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/1075 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/1075/1008 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 6, No 2 (2007): Jurnal Rekayasa Kimia & Lingkungan; 67-70 2356-1661 1412-5064 Title A name given to the resource Pemanfaatan Asam Lemak Bebas Teroksidasi dari Minyak Jarak untuk Sintesis Membran Poliuretan Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Syah, Hendri Date A point or period of time associated with an event in the lifecycle of the resource 2013-12-01 Description An account of the resource Kajian ini bertujuan untuk menentukan kinerja penukar panas tipe shell and tube dengan pengaturan suhu outlet.  Penukar panas yang digunakan dalam kajian ini adalah penukar panas tipe  shell and tube dengan bahan bakar  kerosen.  Parameter  kinerja  yang  dianalisis  adalah  konsumsi  kerosen, suhu keluaran,  koefisien perpindahan panas keseluruhan,  laju perpindahan panas, number of  heat transfer units (NTU),  dan efektivitas. Hasilnya menunjukkan bahwa laju perpindahan panas dalam penukar panas berkisar dari 69,24 hingga 83,13 kW. Energi panas yang dihasilkan dalam eksperimen III  lebih tinggi karena temperaturnya paling tinggi,  ini berbeda dengan efektivitas dan NTU-nya karena masing-masing memiliki nilai terendah (0,77 dan 2,55). Perbedaan tekanan total yang terjadi dalam penukar panas tersebut adalah 366,8 Pa.  Nilai ini jauh lebih kecil dibandingkan tekanan statik kipas yang dipakai yaitu 78 mm H2O. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/1228 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/1228/1116 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 9, No 4 (2013): Jurnal Rekayasa Kimia & Lingkungan 2356-1661 1412-5064 Subject The topic of the resource konsumsi kerosen; laju perpindahan panas; efektivitas; perbedaan tekanan Title A name given to the resource Kajian Kinerja Penukar Panas Tipe Shell and Tube Satu Haluan dengan Pengontrolan Suhu Outlet Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Chong, W. H. Leong, J. W. Leong, J. H. Halim Shah, I. Mohammad Date A point or period of time associated with an event in the lifecycle of the resource 2010-12-01 Description An account of the resource The world now is facing two energy related threats which are lack of sustainable, secure and affordable energy supplies and the environmental damage acquired in producing and consuming ever-increasing amount of energy. In the first decade of the twenty-first century, increasing energy prices reminds us that an affordable energy plays an important role in economic growth and human development. To overcome the abovementioned problem, we cannot continue much longer to consume finite reserves of fossil fuels, the use of which contributes to global warming. Preferably, the world should move towards more sustainable energy sources such as wind energy, solar energy and biomass. However, the abovementioned challenges may not be met solely by introduction of sustainable energy forms. We also need to use energy more efficiently. Developing and introducing more efficient energy conversion technologies is therefore important, for fossil fuels as well as renewable fuels. This assignment addresses the question how biomass may be used more efficiently and economically than it is being used today. Wider use of biomass, a clean and renewable feedstock may extend the lifetime of our fossil fuels resources and alleviate global warming problems. Another advantage of using of biomass as a source of energy is to make developed countries less interdependent on oil-exporting countries, and thereby reduce political tension. Furthermore, the economies of agricultural regions growing energy crops benefit as new jobs are created.Keywords: energy, gasification, sustainable, wet biomass Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/222 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/222/208 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 7, No 4 (2010): Jurnal Rekayasa Kimia & Lingkungan 2356-1661 1412-5064 Title A name given to the resource Green Gasification Technology for Wet Biomass Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource