Asia-Pacific Journal of Chemical Engineering
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The energy challenge of direct contact membrane distillation in low temperature concentrationAbstract Direct contact membrane distillation (DCMD) was operated at low temperatures from 25 to 40 °C to suit the purpose of thermally concentrating sensitive liquid foods, especially fruit juices to high solid content concentrate with most of the quality attributes preserved. A lab scale DCMD unit has been set up at the Centre for Plant and Food Sc... ... hiện toàn bộ
Asia-Pacific Journal of Chemical Engineering - Tập 2 Số 5 - Trang 400-406 - 2007
Ethanol‐tolerant Pt‐alloy cathodes for direct ethanol fuel cell (DEFC) applicationsAbstract The electroactivity of Pt1 Co1 (a/o)/C and Pt3 Cr1 (a/o)/C for the oxygen reduction reaction (ORR) in ethanol‐containing medium was studied. It was found that these cathodes present a high tolerance to this alcohol. The onset potential of the ORR decreased at 14 and 12 mV in the... ... hiện toàn bộ
Asia-Pacific Journal of Chemical Engineering - Tập 4 Số 1 - Trang 17-24 - 2009
Ammonium ion removal using activated zeolite and chitosanAbstract Studies have previously been done on efficacies of chitosan and zeolite in ammonium ion (NH4 + ) removal. However, no study compares the adsorption performance of natural zeolite (NZ) and activated NZ (ANZ) with high molecular weight chitosan (HMWC) and low molecular weight chitosan (LMWC). Hence, this study investiga... ... hiện toàn bộ
Asia-Pacific Journal of Chemical Engineering - Tập 15 Số 3 - 2020
An exergy calculator tool for process simulationAbstract The constant tightening of environmental regulations and the ongoing need to reduce operating costs have posed a challenge for the design of any chemical process. Process engineers use process simulators to help them perform calculations that will, ultimately, result in design parameters or operating conditions for a plant or process. Exergy is a potential ... ... hiện toàn bộ
Asia-Pacific Journal of Chemical Engineering - Tập 2 Số 5 - Trang 431-437 - 2007
Optimization of reactive distillation processes using differential evolution strategiesAbstract Many problems of process synthesis and design in chemical engineering can be modeled as mixed integer nonlinear programming (MINLP) problems. They include both the continuous (floating point) and integer variables. A common feature of this class of mathematical problems is the potential existence of nonconvexities due to a particular form of the objective f... ... hiện toàn bộ
Asia-Pacific Journal of Chemical Engineering - Tập 2 Số 4 - Trang 322-335 - 2007
Design and optimization of isolated energy systems through pinch analysisAbstract Isolated energy systems seem to be a promising option for electrifying remote locations where grid extension is not feasible or economical. Integration of battery bank as means of energy storage with different renewable energy systems can enhance the system reliability and its overall performance. Therefore, appropriate choices of generator sizes and the ba... ... hiện toàn bộ
Asia-Pacific Journal of Chemical Engineering - Tập 6 Số 3 - Trang 518-526 - 2011
Simultaneous heat integration and the synthesis of biogas processes from animal wasteAbstract The objective of this work was to perform simultaneous heat integration and the synthesis of biogas process based on the mixed‐integer nonlinear programming (MINLP) model. A synthesis model recently developed by Drobež et al. [R. Drobež, Z. Novak Pintarič, B. Pahor, Z. Kravanja. Chem. Biochem. Eng. Q, 2009; 23, 445–459] has been u... ... hiện toàn bộ
Asia-Pacific Journal of Chemical Engineering - Tập 6 Số 5 - Trang 734-749 - 2011
Numerical investigation of bubble breakup in a four‐branched microchannel based on non‐Newtonian pseudoplastic fluidAbstract Bubble breakup in a four‐branched microchannel with carboxymethyl cellulose (CMC) solution was investigated by an improved coupled level set and volume of fluid (CLSVOF) method based on consideration of the rheological characteristic of the fluid. The validity of the numerical approach was satisfactorily verified by comparing with the experimental results. ... ... hiện toàn bộ
Asia-Pacific Journal of Chemical Engineering - Tập 15 Số 1 - 2020
CFD modeling of rotary cement kilnsAbstract Rotary cement kilns are widely used to convert calcineous raw meal into cement clinker, and are key components in the cement industry. In this article, we report a comprehensive computational fluid dynamics (CFD)‐based model to capture key transport processes in rotary cement kilns. Separate but coupled computational models were developed for the bed and th... ... hiện toàn bộ
Asia-Pacific Journal of Chemical Engineering - Tập 3 Số 2 - Trang 106-118 - 2008
Carbon dioxide adsorption by modified carbon nanotubesAbstract In this study the CO2 adsorption of three different diameters of multi‐walled carbon nanotubes (MWCNT) and single‐walled carbon nanotube (SWCNT) was investigated for a mixture of CO2 /Ar at a temperature of 70 °C and atmospheric pressure. The largest diameter of MWCNT showed the highest CO2 uptak... ... hiện toàn bộ
Asia-Pacific Journal of Chemical Engineering - Tập 10 Số 6 - Trang 885-892 - 2015
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