Journal of The Chinese Institute of Chemical Engineers最新文献_第7页

Thermophoretic particle deposition efficiency in turbulent tube flow 紊流管内热泳颗粒沉积效率

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-05-01 DOI: 10.1016/j.jcice.2008.01.001

Jyh-Shyan Lin , Chuen-Jinn Tsai , Kuo-Lun Tung , Hann-Chyuan Chiang

引用次数: 17

Optimization and nonlinear control of a batch crystallization process 间歇结晶过程的优化与非线性控制

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-05-01 DOI: 10.1016/j.jcice.2007.12.017

Woranee Paengjuntuek, Paisan Kittisupakorn, Amornchai Arpornwichanop

引用次数: 37

Feasibility study of using montmorillonite for stability enhancement of l-ascorbic acid 蒙脱土增强l-抗坏血酸稳定性的可行性研究

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-05-01 DOI: 10.1016/j.jcice.2007.12.009

Yuan-Haun Lee , Bor-Yann Chen , Kun-Yu Lin , King-Fu Lin , Feng-Huei Lin

引用次数: 5

Effect of poly(ethylene glycol) additives on the photocatalytic activity of TiO2 films prepared by sol–gel processing and low temperature treatments 聚乙二醇添加剂对溶胶-凝胶法制备TiO2薄膜光催化活性的影响

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-05-01 DOI: 10.1016/j.jcice.2007.12.014

Leo Chau-Kuang Liau , Hsuan Chang , Thomas Chun-Kuang Yang , Chien-Lung Huang

引用次数: 25

Non-isothermal simulation of cyclohexane dehydrogenation in an inert membrane reactor with catalytic pellets in the feed-side chamber 进料侧室催化球团惰性膜反应器环己烷脱氢的非等温模拟

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-05-01 DOI: 10.1016/j.jcice.2007.11.011

Hong-Sung Yang , Cheng-Tung Chou

{"title":"Non-isothermal simulation of cyclohexane dehydrogenation in an inert membrane reactor with catalytic pellets in the feed-side chamber","authors":"Hong-Sung Yang , Cheng-Tung Chou","doi":"10.1016/j.jcice.2007.11.011","DOIUrl":"10.1016/j.jcice.2007.11.011","url":null,"abstract":"<div>A mathematical model is presented to simulate the performance of a non-isothermal inert membrane reactor with catalytic pellets in the feed-side chamber (IMRCF). The simulation takes into account the various heat exchanges that take place inside the reactor. The model consists of the full set of partial difference equations that describe the conservation of mass, momentum, energy and chemical species, coupled with chemical kinetics and appropriate boundary conditions for the physical problem. The set of equations is solved by finite difference method. The model is applied to investigate the endothermic dehydrogenation of cyclohexane in the IMRCF, where a permselective Vycor glass membrane is used. The simulation results show that the conversion of cyclohexane for non-isothermal IMRCF at the temperature of 550K and below is higher than the equilibrium conversion. On the contrary, when the temperature is 570K and above, the conversion will be lower than the equilibrium conversion. The heat effects have a greater influence on the IMRCF.</div>","PeriodicalId":17285,"journal":{"name":"Journal of The Chinese Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jcice.2007.11.011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91482860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

A comparison of hydrodynamic methods for mitigating particle fouling in submerged membrane filtration 减轻浸没膜过滤中颗粒污染的水动力方法比较

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-05-01 DOI: 10.1016/j.jcice.2007.12.016

Kuo-Jen Hwang, Chih-Sheng Chan, Fung-Fu Chen

{"title":"A comparison of hydrodynamic methods for mitigating particle fouling in submerged membrane filtration","authors":"Kuo-Jen Hwang, Chih-Sheng Chan, Fung-Fu Chen","doi":"10.1016/j.jcice.2007.12.016","DOIUrl":"10.1016/j.jcice.2007.12.016","url":null,"abstract":"<div>Hydrodynamic methods are used for mitigating particle fouling and for enhancing the filtrate flux in submerged membrane filtration. In the comparison membrane blocking-cake formation filtration system, the effects of filtration pressure, aeration intensity, backwash duration and stepwise increasing pressure on the filtration resistances and filtration flux are measured and discussed. Aeration is helpful for reducing particle deposition on the membrane surface, while stepwise increasing pressure can mainly mitigate internal fouling of the membrane. Periodic backwash can significantly reduce both the resistance caused by the membrane internal fouling and by cake formation; consequently, it can effectively recover the filtrate flux. In contrast, increasing the pressure in constant pressure filtration leads the flux to be decreased due to more severe membrane blockage. According to the comparison of the long-term flux and the received filtrate volume, among these hydrodynamic methods, the periodic backwash with longer duration is the optimal strategy for the filtration.</div>","PeriodicalId":17285,"journal":{"name":"Journal of The Chinese Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jcice.2007.12.016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74620613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Enhancement of target-DNA hybridization efficiency by pre-hybridization on sequence-orientated micro-arrayed probes 序列定向微阵列探针预杂交提高靶dna杂交效率

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-05-01 DOI: 10.1016/j.jcice.2007.12.012

Dan-Kai Yang , Jie-Len Huang , Chia-Chun Chen , Hung-Ju Su , Jui-Chuang Wu

{"title":"Enhancement of target-DNA hybridization efficiency by pre-hybridization on sequence-orientated micro-arrayed probes","authors":"Dan-Kai Yang , Jie-Len Huang , Chia-Chun Chen , Hung-Ju Su , Jui-Chuang Wu","doi":"10.1016/j.jcice.2007.12.012","DOIUrl":"10.1016/j.jcice.2007.12.012","url":null,"abstract":"<div>The enhancement of hybridization efficiency of deoxyribonucleic acid (DNA) targets using oligonucleotide pre-hybridization is studied on two sequence-inversed micro-arrayed probes. The sequences for pre-hybridizing both oligo and target DNA are designed to be fully complementary with their shared DNA probe in a coaxial stacking configuration; i.e. they hybridize immediately alongside each other along the continuous complement probe strand. The pre-hybridizing oligo and target DNA are differentiated by being labeled with two distinct fluorescent dyes, and the cooperative effect on hybridization efficiency is investigated through the comparison of the stacking and individual hybridization configurations based on the detection signals of the labeling dyes. The results show that the pre-hybridization of a DNA oligo enhances the subsequent hybridization efficiency of the target-DNA coupling onto the same probe. The efficiency is enhanced if the hybridization position occurs at a site close to the substrate surface.</div>","PeriodicalId":17285,"journal":{"name":"Journal of The Chinese Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jcice.2007.12.012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73583159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

High-content fructooligosaccharides production using two immobilized microorganisms in an internal-loop airlift bioreactor 内循环气升式生物反应器中两种固定化微生物的高含量低聚果糖生产

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-05-01 DOI: 10.1016/j.jcice.2008.01.006

T.-J. Lin, Y.-C. Lee

{"title":"High-content fructooligosaccharides production using two immobilized microorganisms in an internal-loop airlift bioreactor","authors":"T.-J. Lin, Y.-C. Lee","doi":"10.1016/j.jcice.2008.01.006","DOIUrl":"10.1016/j.jcice.2008.01.006","url":null,"abstract":"<div>Production of high-content fructooligosaccharides (FOSs) from sucrose using calcium alginate-immobilized mycelia of Aspergillus japonicus and Aspergillus niger in an internal-loop airlift bioreactor was investigated. The optimal entrapment of mycelia in A. japonicus and A. niger in calcium alginate were 1% and 7% (w/w), respectively. When 60g of the immobilized mycelia of A. japonicus was supplied into the reactor filling with 3-L 300g/L sucrose solution and gas velocity 7.32cm/s, the total FOS production was about 55% (w/w) of total sugars in the mixture after a batch reaction for 9h. To remove the generated glucose, an inhibitor of β-d-fructofuranosidase, the optimal input of the second immobilized A. niger mycelia particles was 315g. With this input, the total FOSs mass fraction reached up to 90% (w/w) and the initial rate of transfructosylation was increased almost twice as without supplying glucose oxidase. In addition, 5.49cm/s was suggested as the operating gas velocity for considering sufficient oxygen supply for glucose oxidase without generating excessive shear stress to damage the immobilized particles.</div>","PeriodicalId":17285,"journal":{"name":"Journal of The Chinese Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jcice.2008.01.006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89666840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 26

Comparison of flow characteristics for dilute phase pneumatic conveying for two different plastic pellets 两种不同塑料颗粒稀相气力输送的流动特性比较

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-03-01 DOI: 10.1016/j.jcice.2007.12.005

Jae Bum Pahk, George E. Klinzing

引用次数: 16

Estimation of deuterium recoveries from each component of water-isotope mixture in continuous-flow thermal diffusion columns 连续流动热扩散柱中水-同位素混合物各组分氘回收率的估算

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-03-01 DOI: 10.1016/j.jcice.2007.12.001

Ho-Ming Yeh

{"title":"Estimation of deuterium recoveries from each component of water-isotope mixture in continuous-flow thermal diffusion columns","authors":"Ho-Ming Yeh","doi":"10.1016/j.jcice.2007.12.001","DOIUrl":"10.1016/j.jcice.2007.12.001","url":null,"abstract":"<div>The present study deals with the estimation of deuterium recovery from the separation of water–isotope mixture (H2O–HDO–D2O) by continuous-flow thermal diffusion. First, the equations for predicting the degrees of separation for each component in H2O–HDO–D2O system were derived. The recovery of deuterium (D) was then estimated from the degrees of separation of HDO and D2O. The most important assumption in this work was that the concentrations of each component were at local equilibrium within the thermal diffusion column, i.e. H2O+D2O⇄2HDO. It was found that D2O preferably transfers to the bottom end of the column, while HDO does the same for dilute feed concentration, but then transfers to the top of the column when the feed concentration of D2O, C3F, increases to 0.3. The maximum total recovery of deuterium from HDO and D2O occurs at C3F  <!-->0.25.</div>","PeriodicalId":17285,"journal":{"name":"Journal of The Chinese Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jcice.2007.12.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81468109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1