14 hasil untuk "Muhammad Mufti Azis"
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Artikel Jurnal
Kinetic Modeling of C3H6 Inhibition on NO Oxidation over Pt Catalyst
Exhaust after treatment for lean burn and diesel engine is a complex catalytic system that consists of a number of catalytic units. Pt/Al2O3 is often used as a model Diesel Oxidation Catalyst (DOC) that plays an important role to facilitate oxidation of NO to NO2. In the present study, we proposed…
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Artikel Jurnal
Multi-distribution activation energy model on slow pyrolysis of cellulose and lignin in TGA/DSC
Developing a kinetic model to analyze the multi-step reaction of biomass pyrolysis is pivotal to elucidate the mechanism of the pyrolysis. For this purpose, a model-fitting method such as multi-distribution the Distributed Activation Energy Model (DAEM) is one of the most reliable methods. DAEM…
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Artikel Jurnal Teks lengkap
A Systematic Study on the Effect of the Xanthation Temperature on Viscose Quality
The xanthation reaction is an exothermic reaction between alkali cellulose (AC) and carbon disulfide (CS2) used to regenerate a viscose solution. The cooling system plays an important role during the reaction to yield more of the main product, cellulose xanthate (CX), instead of the by-product…
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Artikel Jurnal
An Approach for Selecting CO2 Removal Technology in Indonesia's Upstream Natural Gas Industry Using AHP Method
Impurities are commonly found in natural gas which is produced from reservoirs deposit. The predominant impurities come in CO2 forms. Hence, the selection of proper CO2 removal technologies is a significant step in process engineering as it strongly affects the size of CAPEX and OPEX. However, the…
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Artikel Jurnal
Experimental and Kinetic Modeling of Galactose Valorization to Levulinic Acid
Levulinic acid, a versatile chemical building block, was derived from C6-sugar galactose using sulfuric acid as the catalyst. Galactose is monosaccharide of polysaccharides constituent that is mostly contained in third generation biomass, macro-microalgae. It currently receives high attention to be…
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Artikel Jurnal
Studi Penambahan Etilena Glikol dalam Menghambat Pembentukan Metana Hidrat pada Proses Pemurnian Gas Alam
The gas processing facilities are designed to significantly reduce the impurities such as water vapor, heavy hydrocarbon, carbon dioxide, carbonyl sulfide (COS), benzene-toluene-xylene (BTX), mercaptane, and the sulfur compounds. A small amount of those compounds in natural gas is not preferable…
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Artikel Jurnal
Microwave-Assisted Extraction of Polysaccharides from Chlorella pyrenoidosa and Its Characterization
This study explored an efficient method for extracting polysaccharides from Chlorella pyrenoidosa using microwave-assisted extraction (MAE) with water as the solvent, a technique consistent with green chemistry principles. The goal was to enhance the yield and quality of polysaccharides for their…
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Artikel Jurnal
Kinetics Modeling of Glycerol Carbonate Synthesis from Glycerol and Urea over Amberlyst-15 Catalyst
Synthesize of glycerol carbonate from glycerol and urea is an attractive path as glycerol carbonate has a large potential as a green solvent. The aim of the present study was to develop a kinetic model of glycerol carbonate synthesis with amberlyst-15 resins as a catalyst. The investigation was…
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Artikel Jurnal
Mathematical Modeling of Reactive Extraction of Solute from Slab Solid Material
Reactive extraction is gaining higher attention due its wide application in various solute separation processes. Here, a mathematical model of reactive extraction in slab has been proposed. The model was developed by considering simultaneous processes of active compound intra particle diffusion…
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Artikel Jurnal
Microwave Assisted Hydrotropic Distillation of Myrcene-Rich Essential Oil of Cymbopogon Citratus
Myrcene can be used as a versatile starting material for a myriad product for various applications. The drawbacks of the available myrcene separation techniques promote the investigation of application of environmentally clean, faster, more powerful, and cheaper methods. The combination of…
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Artikel Jurnal
Utilization of Glycerol by Ketalization Reactions with Acetone to Produce Solketal using Indion 225 Na as Catalyst
The increase of biodiesel production would cause an increase of glycerol as by-products. In the present study, utilization of glycerol by-products to form solketal using Indion 225 Na as a catalyst was investigated. The intrinsic kinetic data were taken in a batch reaction. The results showed that…
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Artikel Jurnal
The Impact of Hydraulic Retention Time on the Biomethane Production from Palm Oil Mill Effluent (POME) in Two-Stage Anaerobic Fluidized Bed Reactor
Indonesia is currently the most significant crude palm oil (CPO) producer in the world. In the production ofCPO, 0.7m3 of Palm Oil Mill Effluent (POME) is emitted as the wastewater for every ton of fresh fruit bunches processed in the palm oil mill.With the increasing amount of CPO production, an…
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Artikel Jurnal
Kinetic study of thermophilic anaerobic digestion of sugarcane vinasse in a single-stage continuous stirred tank reactor
Vinasse, the liquid waste from the bottom of a bioethanol distillation column, is a potential feedstock for biogas production due to its high organic content. Vinasse is discharged at a high temperature, i.e., 60–80 °C. Therefore, thermophilic anaerobic digestion is more efficient to directly treat…