Journal of The Chinese Institute of Chemical Engineers最新文献_第5页

Application of hydrogel for the removal of pollutant phenol in water 水凝胶在去除水中污染物苯酚中的应用

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-07-01 DOI: 10.1016/j.jcice.2008.02.006

Gaofeng Pan , Ken-Ichi Kurumada , Yutaka Yamada

引用次数: 17

Thermodynamic modeling of vapor–liquid equilibrium of binary systems ionic liquid + supercritical {CO2 or CHF3} and ionic liquid + hydrocarbons using Peng–Robinson equation of state 离子液体+超临界{CO2或CHF3}和离子液体+碳氢化合物二元体系汽液平衡的Peng-Robinson状态方程热力学模拟

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-07-01 DOI: 10.1016/j.jcice.2008.02.007

Víctor H. Álvarez, Martín Aznar

{"title":"Thermodynamic modeling of vapor–liquid equilibrium of binary systems ionic liquid + supercritical {CO2 or CHF3} and ionic liquid + hydrocarbons using Peng–Robinson equation of state","authors":"Víctor H. Álvarez, Martín Aznar","doi":"10.1016/j.jcice.2008.02.007","DOIUrl":"10.1016/j.jcice.2008.02.007","url":null,"abstract":"<div><p>Vapor–liquid equilibrium (VLE) data from literature for binary systems involving several ionic liquids were correlated. The Peng–Robinson equation of state, coupled with the van der Waals and Wong–Sandler mixing rules, was used as the thermodynamic model to evaluate the fugacity coefficients. The UNIQUAC and NRTL models were used to calculate the excess Gibbs free energy in the Wong–Sandler mixing rule. A molecular modeling strategy using the software ChemOffice was used to calculate the volume and surface area parameters of ionic liquids for UNIQUAC, while the binary interaction energy parameters for UNIQUAC and NRTL models, as well as the binary interaction parameter of the van der Waals and Wong–Sandler mixing rules were estimated through a method based on the genetic algorithm. The results show that, as expected, the Wong–Sandler mixing rules represented better the data, with both activity coefficient models showing high accuracy. However, in one case, NRTL predicted an erroneous azeotropic condition, while UNIQUAC was able to correlate the data without this error.</p></div>","PeriodicalId":17285,"journal":{"name":"Journal of The Chinese Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jcice.2008.02.007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81185713","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: 53

A poly(2-hydroxyethyl methacrylate)-based immobilized metal affinity chromatography adsorbent for protein purification 一种用于蛋白质纯化的固定化金属亲和层析吸附材料

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-07-01 DOI: 10.1016/j.jcice.2008.03.005

Che-Liang Liou, Yi-Chuan Chen, Sung-Chyr Lin

{"title":"A poly(2-hydroxyethyl methacrylate)-based immobilized metal affinity chromatography adsorbent for protein purification","authors":"Che-Liang Liou, Yi-Chuan Chen, Sung-Chyr Lin","doi":"10.1016/j.jcice.2008.03.005","DOIUrl":"10.1016/j.jcice.2008.03.005","url":null,"abstract":"<div><p>Poly(HEMA) microbeads were prepared by suspension polymerization of 2-hydorxyethylmethacrylate and ethyleneglycoldimethacrylate (EGDMA). The water content, ligand density, and selectivity for poly(His)-tagged <span>d</span>-hydantoinase of the poly(HEMA)-based adsorbents were affected by the concentration of EDGMA used during polymerization. The Ni(II)-loaded poly(HEMA) adsorbent exhibited an adsorption capacity of 1.0mg/g for poly(His)-tagged <span>d</span>-hydantoinase under optimal conditions with buffer containing 100–300mM NaCl at pH 6.0. One-step purification protocol with the adsorbent gave a purity of at least 92%. The adsorption capacity of adsorbent declined by 54% after 7 cycles, due to the leaching of Ni(II) from the adsorbent. However, upon regeneration the adsorption capacity can be restored. Given the ease of preparation and the chemical and microbial resistance, the poly(HEMA)-based IMAC adsorbent could be a promising substitute for the polysaccharide-based IMAC adsorbents.</p></div>","PeriodicalId":17285,"journal":{"name":"Journal of The Chinese Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jcice.2008.03.005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80916868","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: 13

A new single step process for synthesis and growth of ZnGeP2 crystal 一种合成和生长ZnGeP2晶体的单步新工艺

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-07-01 DOI: 10.1016/j.jcice.2007.12.011

T.Y. Wang , R. Sivakumar , D.K. Rai , W.T. Hsu , C.W. Lan

引用次数: 18

Adsorption of chromium (III) ion from aqueous solution using rice hull ash 稻壳灰吸附水溶液中铬离子的研究

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-07-01 DOI: 10.1016/j.jcice.2008.02.004

Li-Hua Wang, Chun-I Lin

引用次数: 48

Membrane fouling formation when treating effluent by ultrafiltration 超滤处理出水时形成膜污染

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-07-01 DOI: 10.1016/j.jcice.2008.02.005

Shu-Hai You , Dyi-Hwa Tseng , Wei-Chun Hsu

引用次数: 9

Membrane dipole potential of interaction between amyloid protein and phospholipid membranes is dependent on protein aggregation state 淀粉样蛋白与磷脂膜相互作用的膜偶极电势取决于蛋白质的聚集状态

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-07-01 DOI: 10.1016/j.jcice.2008.03.001

Steven S.-S. Wang, Kuan-Nan Liu

{"title":"Membrane dipole potential of interaction between amyloid protein and phospholipid membranes is dependent on protein aggregation state","authors":"Steven S.-S. Wang, Kuan-Nan Liu","doi":"10.1016/j.jcice.2008.03.001","DOIUrl":"10.1016/j.jcice.2008.03.001","url":null,"abstract":"<div><p>At least 20 different human proteins can fold abnormally resulting in the formation of pathological aggregates and several deadly degenerative diseases. Evidence also suggests that non-disease-associated proteins, under appropriate conditions, can aggregate <em>in vitro</em> to form amyloid fibrillar species. Numerous reports have shown that the interaction between cell membrane and amyloid proteins is of particular importance in the cytotoxic effects elicited by amyloid proteins. Despite the significant progress has been made, there are still large gaps in our knowledge of the disease mechanism(s) associated with this aforementioned interaction. In the current research, using a dual-wavelength fluorescence ratiometric method along with a voltage-sensitive dye, di-8-ANEPPS, we found that a decrease in intramembrane dipole potential was observed upon binding of amyloid proteins with phospholipids and this decrease became more dramatic when protein was in its aggregated form. Moreover, our data revealed that a correlation among the presence of cholesterol, the type of phospholipid, and the drop in dipole potential was evident. In comparison with the pure DPPC, the relative difference in dipole potential between fibrillar and freshly prepared samples attenuated with the addition of cholesterol while an increase in relative potential difference was observed in DPPG. Importantly, our results, for the first time, presented that the membrane dipole potential in amyloid protein–phospholipid interaction was dependent on the aggregation state of proteins, which is highly associated with the biological effects elicited by amyloid proteins.</p></div>","PeriodicalId":17285,"journal":{"name":"Journal of The Chinese Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jcice.2008.03.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90560571","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: 12

Enhancement of polysaccharide production by optimization of culture conditions in shake flask submerged cultivation of Grifola umbellata 摇瓶潜水培养条件优化提高凤仙花多糖产量

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-07-01 DOI: 10.1016/j.jcice.2008.01.003

Hung-Chang Huang, Yung-Chuan Liu

引用次数: 35

Mutual solubility study for 94.2:5.8 of ethanol to octane with supercritical carbon dioxide solvent 超临界二氧化碳溶剂对94.2:5.8乙醇与辛烷的溶解度研究

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-07-01 DOI: 10.1016/j.jcice.2008.03.002

R. Davarnejad, K.M. Kassim, A. Zainal, Suhairi A. Sata

{"title":"Mutual solubility study for 94.2:5.8 of ethanol to octane with supercritical carbon dioxide solvent","authors":"R. Davarnejad, K.M. Kassim, A. Zainal, Suhairi A. Sata","doi":"10.1016/j.jcice.2008.03.002","DOIUrl":"10.1016/j.jcice.2008.03.002","url":null,"abstract":"<div><p>Solubility data of a mixture containing 94.2% ethanol and 5.8% octane was measured in carbon dioxide solvent using a high-pressure type phase equilibrium apparatus at pressures up to 103.5bar and at temperature of 75°C. The results showed that considerable separation was not achieved in this ethanol and octane ratio. However, the experimental data were then compared with the theoretical data which were obtained from two models which are regular solution theory and Redlich–Kwong equation of state. Regular solution theory is employed to each phase by applying activity coefficient expressions. Redlich–Kwong equation of state is employed to the vapor phase and then with applying fugacity coefficient, liquid phase data is obtained. The regular solution theory as a novel model approach has been found to be encouraging for the prediction of phase equilibria solubilities. It concluded that the regular solution theory model could predict two phases equilibrium data better than Redlich–Kwong equation of state.</p></div>","PeriodicalId":17285,"journal":{"name":"Journal of The Chinese Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jcice.2008.03.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75012865","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: 4

Micro- and nano-characterization of membrane materials 膜材料的微纳米表征

Journal of The Chinese Institute of Chemical Engineers Pub Date : 2008-07-01 DOI: 10.1016/j.jcice.2008.01.008

F.H. She , W.M. Gao , Z. Peng , P.D. Hodgson , L.X. Kong

引用次数: 6