Reactions最新文献_第10页

Amphotericin B 两性霉素B

Reactions Pub Date : 2022-10-01 DOI: 10.1007/s40278-022-25663-2

引用次数: 0

Amphotericin B 两性霉素B

Reactions Pub Date : 2022-10-01 DOI: 10.1007/s40278-022-26303-y

引用次数: 0

Nitrous oxide 一氧化二氮

Reactions Pub Date : 2022-10-01 DOI: 10.1007/s40278-022-25165-z

Gurney Bf

引用次数: 0

Kinetic Modeling for the Gas-Phase Hydrogenation of the LOHC γ-Butyrolactone–1,4-Butanediol on a Copper-Zinc Catalyst 铜锌催化剂上LOHC γ-丁内酯- 1,4-丁二醇气相加氢的动力学模拟

Reactions Pub Date : 2022-09-26 DOI: 10.3390/reactions3040033

Vincent Gautier, Isabelle Champon, Alban Chappaz, I. Pitault

{"title":"Kinetic Modeling for the Gas-Phase Hydrogenation of the LOHC γ-Butyrolactone–1,4-Butanediol on a Copper-Zinc Catalyst","authors":"Vincent Gautier, Isabelle Champon, Alban Chappaz, I. Pitault","doi":"10.3390/reactions3040033","DOIUrl":"https://doi.org/10.3390/reactions3040033","url":null,"abstract":"Liquid organic hydrogen carriers (LOHCs) are an interesting alternative for hydrogen storage as the method is based on the reversibility of hydrogenation and dehydrogenation reactions to produce liquid and safe components at room temperature. As hydrogen storage involves a large amount of hydrogen and pure compounds, the design of a three-phase reactor requires the study of gas and liquid-phase kinetics. The gas-phase hydrogenation kinetics of LOHC γ-butyrolactone/1,4-butanediol on a copper-zinc catalyst are investigated here. The experiments were performed with data, taken from the literature, in the temperature and pressure ranges 200–240 °C and 25–35 bar, respectively, for a H2/γ-butyrolactone molar ratio at the reactor inlet of about 90. The best kinetic law takes into account the thermodynamic chemical equilibrium, is based on the associative hydrogen adsorption and is able to simulate temperature and pressure effects. For this model, the confidence intervals are at most 28% for the pre-exponential factors and 4% for the activation energies. Finally, this model will be included in a larger reactor model in order to evaluate the selectivity of the reactions, which may differ depending on whether the reaction takes place in the liquid or gas phase.","PeriodicalId":20873,"journal":{"name":"Reactions","volume":"707 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78717870","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: 0

Advances for Biorefineries: Glycerol Hydrogenolysis to 1,3-Propylene Glycol 生物炼制的进展:甘油氢解制1,3-丙二醇

Reactions Pub Date : 2022-09-19 DOI: 10.3390/reactions3030032

M. Gatti, N. Nichio, F. Pompeo

{"title":"Advances for Biorefineries: Glycerol Hydrogenolysis to 1,3-Propylene Glycol","authors":"M. Gatti, N. Nichio, F. Pompeo","doi":"10.3390/reactions3030032","DOIUrl":"https://doi.org/10.3390/reactions3030032","url":null,"abstract":"Humanity’s growing dependence on non-renewable resources and the ensuing environmental impact thus generated have spurred the search for alternatives to replace chemicals and energy obtained from petroleum derivatives. Within the group of biofuels, biodiesel has managed to expand worldwide at considerable levels, going from 20 million tn/year in 2010 to 47 million tn/year in 2022, boosting the supply of glycerol, a by-product of its synthesis that can be easily used as a renewable, clean, low-cost raw material for the manufacture of products for the chemical industry. The hydrogenolysis of glycerol leads to the production of glycols, 1,2-propylene glycol (1,2-PG) and 1,3-propylene glycol (1,3-PG). In particular, 1,3-PG has the highest added value and has multiple uses including its application as an additive in the polymer industry, the manufacture of cosmetics, cleaning products, cooling liquids, etc. This review focuses on the study of the hydrogenolysis of glycerol for the production of 1,3-PG, presenting the main reaction mechanisms and the catalysts employed, both in liquid and vapor phase. Engineering aspects and the effect of the operating variables to achieve maximum yields are discussed. Finally, studies related to the stability and the main deactivation mechanisms of catalytic systems are presented.","PeriodicalId":20873,"journal":{"name":"Reactions","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88008829","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

Thiol-Ene Reaction of Heparin Allyl Ester, Heparin 4-Vinylbenzyl Ester and Enoxaparin 肝素烯丙基酯、肝素4-乙烯基苄基酯与依诺肝素的硫烯反应

Reactions Pub Date : 2022-09-05 DOI: 10.3390/reactions3030031

R. Taylor, D. Poudel

引用次数: 0

Dextromethorphan overdose 右美沙芬过量

Reactions Pub Date : 2022-09-01 DOI: 10.1007/s40278-022-23549-z

引用次数: 0

Biogenic Synthesis of ZnO Nanoparticles and Their Application as Bioactive Agents: A Critical Overview ZnO纳米颗粒的生物合成及其作为生物活性剂的应用综述

Reactions Pub Date : 2022-08-17 DOI: 10.3390/reactions3030030

M. C. Sportelli, C. Gaudiuso, Annalisa Volpe, Margherita Izzi, R. Picca, A. Ancona, N. Cioffi

引用次数: 6