Journal of Chemical Engineering of Japan最新文献

{"title":"Ammonia Methanation of Carbon Dioxide with a Hybrid Catalyst","authors":"Hitoshi Saima, Reiji Sunamoto, Hiroki Miyaoka, Takayuki Ichikawa","doi":"10.1080/00219592.2023.2248176","DOIUrl":"https://doi.org/10.1080/00219592.2023.2248176","url":null,"abstract":"Ammonia methanation is a reaction that synthesizes methane directly from carbon dioxide and ammonia. The Sabatier reaction, which synthesizes methane by hydrogenating carbon dioxide, requires a cooling facility in the reactor due to its large heat value. On the other hand, hydrogen is supposed to be transported as a hydrogen energy carrier such as ammonia, and energy must be injected to produce hydrogen from them. The ammonia methanation reaction, in which these two reactions proceed simultaneously, has a low heat of reaction and can be constructed using an adiabatic reactor. In this study, the ammonia methanation reaction with a hybrid catalyst that combines an ammonia decomposition catalyst and a Sabatier reaction catalyst as powders was investigated. Precipitated iron catalyst modified with alumina and potassium showed good activity for ammonia decomposition. Ammonia methanation reaction was carried out using a hybrid catalyst combining modified precipitated iron catalyst and Ni/CeO2 catalyst, but almost no methane was obtained. This is presumed to be due to the formation of CeFeO3, which is a composite oxide, the shrinkage of the pores of CeO2, and the alteration of Ni. Therefore, in order to reduce the number of contact points between the precipitated iron catalyst and the Ni/CeO2 catalyst, they were formed into particles and mixed to conduct the ammonia methanation reaction. However, although methane was produced, a sufficient yield was not obtained. Ni/Al2O3 catalyst also showed good activity for ammonia decomposition reaction. A hybrid catalyst consisting of Ni/Al2O3 and Ni/CeO2 catalysts was used for the ammonia methanation reaction, and a high methane yield of over 60% was obtained.","PeriodicalId":15331,"journal":{"name":"Journal of Chemical Engineering of Japan","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134911211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Coagulant Concentration on Soy Protein-Based Fiber for Meat Substitute by Wet Spinning Combined with Ionic Cross-Linking of Alginate","authors":"Shinsuke Nagamine, Mika Akagi, Kyuya Nakagawa, Takashi Kobayashi","doi":"10.1080/00219592.2023.2256377","DOIUrl":"https://doi.org/10.1080/00219592.2023.2256377","url":null,"abstract":"Meat substitutes production using plant-derived materials is attracting attentions as a solution for sustainable protein supply. We have previously reported the fabrication of soy protein-based fibers by combination of wet spinning and ionic cross-linking of alginate. In this study, we focused on the calcium ion concentration in the coagulant solution and alginate concentration in the spinning solution, which are determinant factors for in the gelation of alginate. The fiber diameter was reduced by increasing calcium ion concentration, probably due to the dehydration from fiber induced by osmotic pressure difference with coagulant solution and the suppression of swelling of fiber by the rapid gelation. The hardness of fibers evaluated by texture analysis increased as the concentrations of alginate and calcium ion increased, while the springiness increased with increasing calcium ion concentration but decreased with alginate concentration. The controlling the structure and texture of fibers by the compositions of spinning and coagulant solutions would improve their applicability to meat substitutes.","PeriodicalId":15331,"journal":{"name":"Journal of Chemical Engineering of Japan","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135734912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of childhood trauma on aggressive behaviors and hippocampal function: the modulation of COMT haplotypes.","authors":"Chao Wang, Linfei Zhu, Wenyu Zheng, Hanyuzhu Peng, Jiaojian Wang, Yue Cui, Bing Liu, Tianzi Jiang","doi":"10.1093/psyrad/kkad013","DOIUrl":"10.1093/psyrad/kkad013","url":null,"abstract":"<p><strong>Background: </strong>Aggression is a commonly hostile behavior linked to the hippocampal activity. Childhood trauma (CT) exposure has been associated with altered sensitization of the hypothalamic-pituitary-adrenal (HPA) axis and hippocampal volume，which could increase violent aggressive behaviors. Additionally, Catechol-O-methyltransferase (COMT), the major dopamine metabolism enzyme, is implicated in stress responsivity, including aggression. Hence, CT exposure may affect aggression through the effect on the hippocampal function, which might also be modulated by the COMT variations.</p><p><strong>Objectives: </strong>This study examined whether both CT and haplotypes of COMT moderate hippocampal function and thus affect human aggressive behavior.</p><p><strong>Methods: </strong>We obtained bilateral hippocampal functional connectivity maps using resting state functional magnetic resonance imaging (MRI) data. COMT haplotype estimation was performed using Haploview 4.2 and PHASE 2.1. Then we constructed a moderated mediation model to study the effect of the CTQ × COMT on aggressive behavior.</p><p><strong>Results: </strong>Three major haplotypes were generated from thirteen single nucleotide polymorphisms (SNPs) within the COMT gene and formed three haplotypes corresponding to high, medium, and low enzymatic activity of COMT. The results showed interactive relationships between the Childhood Trauma Questionnaire (CTQ) and COMT with respect to the functional connectivity (FC) of the bilateral hippocampus (HIP)-orbital frontal cortex (OFC). Specifically, CT experience predicted lower negative HIP-OFC coupling in the APS and HPS haplotypes corresponding to the medium and high enzymatic activity of COMT, but greater FC in the LPS haplotypes corresponding to the low enzymatic activity. We also observed a conditional mediation effect of the right HIP-OFC coupling in the link between COMT and aggressive behavior that was moderated by CT experience.</p><p><strong>Conclusions: </strong>These results suggest that CT and COMT have a combined effect on aggressive behavior through hippocampal function. This mediation analysis sheds light on the influence of childhood experience on aggressive behavior in different genetic backgrounds.</p>","PeriodicalId":15331,"journal":{"name":"Journal of Chemical Engineering of Japan","volume":"45 1","pages":"kkad013"},"PeriodicalIF":0.0,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11003423/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88190980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategy of Development on Zeolite Membrane for Forward Osmosis Operation; Effects of Structural Parameter of Support Layer and Si/Al Ratio of ZSM-5 Layer on Water Flux","authors":"Motomu Sakai, Yuta Nomura, M. Matsukata","doi":"10.1080/00219592.2023.2251529","DOIUrl":"https://doi.org/10.1080/00219592.2023.2251529","url":null,"abstract":"","PeriodicalId":15331,"journal":{"name":"Journal of Chemical Engineering of Japan","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48621510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modification of Detailed Kinetic Mechanism for Aromatic Hydrocarbon Formation during C3–C4 Hydrocarbon Pyrolysis","authors":"Yoshiya Matsukawa, Risa Shinohara, Arata Kanno, Y. Saito, Y. Matsushita, H. Aoki","doi":"10.1080/00219592.2023.2247031","DOIUrl":"https://doi.org/10.1080/00219592.2023.2247031","url":null,"abstract":"","PeriodicalId":15331,"journal":{"name":"Journal of Chemical Engineering of Japan","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48265591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling of Porous Catalytic Pellets with Various Morphologies Suspended in Batch Reactor and CSTR from Analytical Solutions of Reaction-Diffusion Equations","authors":"Young‐Sang Cho","doi":"10.1080/00219592.2023.2247783","DOIUrl":"https://doi.org/10.1080/00219592.2023.2247783","url":null,"abstract":"","PeriodicalId":15331,"journal":{"name":"Journal of Chemical Engineering of Japan","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42235019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel Identification Method of Seawater Contamination into Steam-Water Circuit Including Carbon Dioxide of Power Plants Based on pH, Specific Conductivity, and Cation Conductivity","authors":"Yuta Nakatsuchi, A. Hamasaki, Haruka Kido, T. Iwato","doi":"10.1080/00219592.2023.2238770","DOIUrl":"https://doi.org/10.1080/00219592.2023.2238770","url":null,"abstract":"","PeriodicalId":15331,"journal":{"name":"Journal of Chemical Engineering of Japan","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44105245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bayesian Optimization for Favourable Suspension Culture of Orbitally Shaken Bioreactors with a Hollow Cylinder Wall","authors":"Li-yong Wang, Y. Okano, I. Horiguchi, Jiangao Zhang","doi":"10.1080/00219592.2023.2247046","DOIUrl":"https://doi.org/10.1080/00219592.2023.2247046","url":null,"abstract":"","PeriodicalId":15331,"journal":{"name":"Journal of Chemical Engineering of Japan","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45403677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Persistent Free Radicals (PFRs) Formed in Pyrolyzed Synthetic CHO-Type Polymers: Novel Raw Material for PFR and Better Understanding for Its Formation","authors":"K. Onoe, Y. Uemura, A. Takeshita","doi":"10.1080/00219592.2023.2239287","DOIUrl":"https://doi.org/10.1080/00219592.2023.2239287","url":null,"abstract":"","PeriodicalId":15331,"journal":{"name":"Journal of Chemical Engineering of Japan","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44326969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kinetic Study of Catalytic Surface Reaction in Methane Pyrolysis in Molten Metal Bubble Column Reactors","authors":"Nada Zaghloul, S. Kodama, H. Sekiguchi","doi":"10.1080/00219592.2023.2240859","DOIUrl":"https://doi.org/10.1080/00219592.2023.2240859","url":null,"abstract":"","PeriodicalId":15331,"journal":{"name":"Journal of Chemical Engineering of Japan","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46919903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}