Journal of The Japan Petroleum Institute最新文献_第10页

Effect of Different Chelating Agents on the Physicochemical Properties of Cu/ZnO Catalysts for Low-temperature Methanol Synthesis from Syngas Containing CO 2 不同螯合剂对含co2合成气低温甲醇Cu/ZnO催化剂理化性能的影响

IF 1 4区工程技术

Journal of The Japan Petroleum Institute Pub Date : 2021-09-01 DOI: 10.1627/JPI.64.245

Fei Chen, W. Gao, Baizhang Zhang, Heng Zhao, Liwei Xiao, Y. Araki, Xiao Yong, Wei Zhang, Tiejian Zhao, Zhongshan Guo, Yingluo He, Peipei Zhang, N. Tsubaki

{"title":"Effect of Different Chelating Agents on the Physicochemical Properties of Cu/ZnO Catalysts for Low-temperature Methanol Synthesis from Syngas Containing CO 2","authors":"Fei Chen, W. Gao, Baizhang Zhang, Heng Zhao, Liwei Xiao, Y. Araki, Xiao Yong, Wei Zhang, Tiejian Zhao, Zhongshan Guo, Yingluo He, Peipei Zhang, N. Tsubaki","doi":"10.1627/JPI.64.245","DOIUrl":"https://doi.org/10.1627/JPI.64.245","url":null,"abstract":"Methanol is the simplest primary alcohol manufactured worldwide in large quantities with an annual production of 40-60 million tons1). Methanol is a clean liquid fuel which can be used for fuel cells2). Methanol is extensively used for the production of dimethoxymethane (DMM), formic acid, dimethyl ether (DME), and other industrial chemicals3),4). More importantly, methanol is an intermediate for the synthesis of aromatics from syngas (CO+H2) or mixtures of carbon dioxide and hydrogen (CO2 +H2). These many applications emphasize the desirability of the development of highly active catalysts for methanol synthesis. The conventional high-temperature methanol synthesis process was developed by Imperial Chemical Industries Limited (ICI)2). However, the process achieves one-pass CO conversion of only 20-30 % because methanol synthesis is an exothermic reaction2). Therefore, recycling of unreacted feed gas is essential to increase conversion, leading to increased production costs. Consequently, methanol synthesis processes operating at low temperatures are very desirable. We previously proposed a novel reaction path of low-temperature methanol synthesis over Cu/ZnO catalyst using various alcohols as both promoters and solvents, which produced methanol at low temperatures (130-170 °C) in a slurry-phase reactor7),8). This new process can use syngas containing both CO2/H2O directly without further purification, since CO2 and H2O in the feed gas are both byproducts and reactants, so are recycled in-situ in [Regular Paper]","PeriodicalId":17362,"journal":{"name":"Journal of The Japan Petroleum Institute","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76660283","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}

引用次数: 2

Asphaltene Dispersion in Mixed Poor Solvents 沥青质在混合贫溶剂中的分散

IF 1 4区工程技术

Journal of The Japan Petroleum Institute Pub Date : 2021-09-01 DOI: 10.1627/JPI.64.302

Masato Morimoto, Takashige Sato, Naoya Fukatsu, T. Morita, Hidekimi Yamamoto, R. Tanaka

引用次数: 1

Dimethyl Ether Steam Reforming Utilizing Cu-based Catalysts Derived from Mg 1– x Cu x Al 2 O 4 and γ-Al 2 O 3 由mg1 - x Cu- Al - 2o4和γ-Al - 2o3衍生的Cu基催化剂催化二甲醚蒸汽重整

IF 1 4区工程技术

Journal of The Japan Petroleum Institute Pub Date : 2021-09-01 DOI: 10.1627/JPI.64.226

Shohei Tada, Fumito Otsuka, R. Kikuchi

引用次数: 0

Porous NiO Prepared by Flame Spray Pyrolysis for 80 wt% Ni–CeO 2 Catalyst and Its Activity for CO 2 Methanation 80 wt% ni - ce2催化剂火焰喷雾热解制备多孔NiO及其co2甲烷化活性研究

IF 1 4区工程技术

Journal of The Japan Petroleum Institute Pub Date : 2021-09-01 DOI: 10.1627/JPI.64.261

Kakeru Fujiwara, Shogo Kayano, M. Nishijima, Keisuke Kobayashi, T. Nanba, Taku Tsujimura

{"title":"Porous NiO Prepared by Flame Spray Pyrolysis for 80 wt% Ni–CeO 2 Catalyst and Its Activity for CO 2 Methanation","authors":"Kakeru Fujiwara, Shogo Kayano, M. Nishijima, Keisuke Kobayashi, T. Nanba, Taku Tsujimura","doi":"10.1627/JPI.64.261","DOIUrl":"https://doi.org/10.1627/JPI.64.261","url":null,"abstract":"NiO and CeO 2 were prepared via ﬂame spray pyrolysis. The speciﬁc surface area and total pore volume were 251 m 2 g –1 and 2.3 cm 3 g –1 for NiO and 338 m 2 g –1 and 3.3 cm 3 g –1 for CeO 2 , respectively. The high porosity and surface area of the NiO allowed deposition of small CeO 2 particles ( 〜 5 nm) by the impregnation of cerium acetate monohydrate. The particles were reduced using 5 % H 2 at 500 °C for 1 h which converted NiO to metallic Ni. During the reduction, the growth of Ni particles was hindered by CeO 2 particles. Consequently, the Ni size was relatively small ( 〜 20 nm) despite the extremely high Ni content (80 wt%), as observed by scanning transmission electron microscopy. In contrast, incorporation of Ni using nickel acetate tetrahydrate into the CeO 2 support resulted in formation of inhomogeneous Ni particles (20-100 nm) after H 2 reduction. H 2 chemisorption measurement showed the surface area of Ni particles in the former catalyst was 13.7 m 2 g –1 , which was 2.4 times larger than that in the latter catalyst. The former catalyst exhibited remarkable performance for CO 2 methanation (47 % CO 2 conversion at 250 °C), 2 times higher than in the latter catalyst.","PeriodicalId":17362,"journal":{"name":"Journal of The Japan Petroleum Institute","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83217538","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}

引用次数: 1

Methyl Esterification of Oleic Acid in Supercritical Methanol with Methyl Formate 油酸与甲酸甲酯在超临界甲醇中的甲基酯化反应

IF 1 4区工程技术

Journal of The Japan Petroleum Institute Pub Date : 2021-07-01 DOI: 10.1627/JPI.64.188

E. Minami, H. Kawamoto

引用次数: 0

Effect of Tar-adsorbing Particles on Tar Components Generated by Lignite Gasification in a Fluidized Bed Gasifier 吸焦油颗粒对褐煤流化床气化焦油组分的影响

IF 1 4区工程技术

Journal of The Japan Petroleum Institute Pub Date : 2021-07-01 DOI: 10.1627/JPI.64.197

T. Murakami

{"title":"Effect of Tar-adsorbing Particles on Tar Components Generated by Lignite Gasification in a Fluidized Bed Gasifier","authors":"T. Murakami","doi":"10.1627/JPI.64.197","DOIUrl":"https://doi.org/10.1627/JPI.64.197","url":null,"abstract":"In a dual fluidized bed gasifier suitable for gasification of lignite, tar is generated as the raw material is gasified because the gasification reaction has at 1073-1173 K, which is a relatively low temperature, and there is a problem such as tar adhering to the piping of the cooling system in the subsequent stage. In this study, in order to reduce tar in the gasification of lignite, porous alumina particles were applied as a tar adsorbent to the upper stage of a laboratory-scale two-stage fluidized bed gasifier, and the gasification characteristics of the produced gas and the tar components were analyzed and its effect was investigated. From the analysis results of tar components using gas chromatograph mass spectrometry (GC/MS) and field desorption mass spectrometry (FD-MS), the tar components obtained under the respective gasification conditions of pyrolysis and steam were almost no difference, and the main components of tar were polycyclic aromatic hydrocarbons without substituents. It was also found that the main components of tar can be sufficiently identified by GC/MS analysis alone. The application of the porous alumina particles increased the gas yields due to the cracking effect of tar. Furthermore, it was confirmed that the gas yields increased under the steam gasification condition rather than pyrolysis condition, and the gasification reactions were promoted by steam. From these results, it is considered that the porous alumina particles are effective in reducing tar, and as a reformer using this, a dual-type reformer capable of using the tar adsorbent for a long period of time is suitable.","PeriodicalId":17362,"journal":{"name":"Journal of The Japan Petroleum Institute","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90465623","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}

引用次数: 0

Mechanistic Study of Hydrogen Production Based on the Formate Decomposition with Platinum Nanoparticles Dispersed by Polyvinylpyrrolidone 聚乙烯吡咯烷酮分散铂纳米颗粒分解甲酸酯制氢机理研究

IF 1 4区工程技术

Journal of The Japan Petroleum Institute Pub Date : 2021-07-01 DOI: 10.1627/JPI.64.203

Yusuke Minami, Y. Amao

{"title":"Mechanistic Study of Hydrogen Production Based on the Formate Decomposition with Platinum Nanoparticles Dispersed by Polyvinylpyrrolidone","authors":"Yusuke Minami, Y. Amao","doi":"10.1627/JPI.64.203","DOIUrl":"https://doi.org/10.1627/JPI.64.203","url":null,"abstract":"Hydrogen is currently considered to be an alternative source energy to fossil fuels, which are the cause of excessive carbon dioxide emissions. Hydrogen has a high energy density and can be easily produced by electrolysis of water using electric energy derived from renewable energy, so has high potential as a renewable energy source. However, hydrogen is a gas at normal temperature and pressure, so presents problems with storage and transportation, and techniques for overcoming these disadvantages are being actively researched1). One technology for storing and transporting hydrogen is the hydrogen carrier that contains a hydrogen atom in the molecule which can be released as hydrogen molecules by chemical reaction. Candidate substances that can be used as hydrogen carriers include ammonia2), organic hydride3),4), and hydrogen storage alloys5),6). Formate is one of the most promising candidates for a hydrogen carrier material. Formic acid is a liquid at ordinary temperature and pressure, and formic acid with a concentration of 90 % or less does not fall under the Poisonous and Deleterious Substances Control Law in Japan. Furthermore, an aqueous solution of formic acid of less than 78 % does not fall under the category of dangerous goods under the Fire Service Act of Japanese Law and is easy to handle, is less toxic, and contains 4.3 wt% hydrogen in the formic acid molecule. These characteristics of formic acid as a hydrogen carrier are very suitable for safe storage and transportation of hydrogen energy. Use of formic acid as a hydrogen carrier requires in[Regular Paper]","PeriodicalId":17362,"journal":{"name":"Journal of The Japan Petroleum Institute","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82071720","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}

引用次数: 0

Improvement of Hydrogen Oxidation Reaction in Anion Exchange Membrane Fuel Cells with Ruthenium-based Nanoparticle Catalysts 钌基纳米颗粒催化剂对阴离子交换膜燃料电池中氢氧化反应的改进

IF 1 4区工程技术

Journal of The Japan Petroleum Institute Pub Date : 2021-07-01 DOI: 10.1627/JPI.64.166

Junya Ohyama, A. Satsuma

引用次数: 1

Effect of Air Sparging on Ethanol Production from Xylose and Glucose in Continuous Chemostat Fermentation Process Utilizing High Cell Density of Candida intermedia 4-6-4T2 利用高密度假丝酵母菌培养基4-6-4T2连续化凝发酵过程中空气喷射对木糖和葡萄糖产乙醇的影响

IF 1 4区工程技术

Journal of The Japan Petroleum Institute Pub Date : 2021-07-01 DOI: 10.1627/JPI.64.178

H. Nagasaki, Yuya Suzuki, T. Fujimoto, Hayato Saito, Toshihito Suzuki, Shigeyuki Watanabe

{"title":"Effect of Air Sparging on Ethanol Production from Xylose and Glucose in Continuous Chemostat Fermentation Process Utilizing High Cell Density of Candida intermedia 4-6-4T2","authors":"H. Nagasaki, Yuya Suzuki, T. Fujimoto, Hayato Saito, Toshihito Suzuki, Shigeyuki Watanabe","doi":"10.1627/JPI.64.178","DOIUrl":"https://doi.org/10.1627/JPI.64.178","url":null,"abstract":"Reducing fermentation periods and increasing ethanol productivity are cost effective for ethanol production from lignocellulosic biomass. Increasing the density of cells for fermentation typically increases ethanol productivity, but also increases the concentration of dissolved carbon dioxide (dCO2) in the fermented broth. Such accumulated dCO2 sometimes reduces ethanol production. The Continuous Chemostat Fermentation (CCF) process utilizing high density of Candida intermedia 4-6-4T2 with and without air sparging was evaluated for the effect on ethanol production and rapid fermentation using 24-h cycles. Synthetic fermentation solution without nitrogen sources containing 20 g/L xylose and 30 g/L glucose plus 5 g/L acetic acid as fermentation inhibitor was supplemented into a culture vessel at 15 mL/h, and fermented broth was recovered from the same flask at 15 mL/h. Various conditions were tested to reduce the accumulated dCO2 in the fermented broth, but air sparging at 0.056 vvm was the most effective for ethanol production in the CCF process. For the 24-h startup-batch and 6-cycle CCF process (144 h), the ethanol yield was 0.4 g/g and the cell density of the used C. intermedia 4-6-4T2 for one cycle was one-third compared to that of sequential batch fermentation.","PeriodicalId":17362,"journal":{"name":"Journal of The Japan Petroleum Institute","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72511928","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}

引用次数: 1

Carbon Dioxide Utilization by Using Organic or Metal Catalysts 利用有机或金属催化剂利用二氧化碳

IF 1 4区工程技术

Journal of The Japan Petroleum Institute Pub Date : 2021-07-01 DOI: 10.1627/JPI.64.172

Yuichi Manaka

引用次数: 2