Grazia Leonzio , Giovanni Manenti , Marcello Maria Bozzini , Roberto Baratti , Flavio Manenti
{"title":"甲醇合成反应器在非等温冷却条件下的运行分析","authors":"Grazia Leonzio , Giovanni Manenti , Marcello Maria Bozzini , Roberto Baratti , Flavio Manenti","doi":"10.1016/j.fuproc.2025.108288","DOIUrl":null,"url":null,"abstract":"<div><div>Productivity and energy efficiency of industrial units for methanol synthesis strongly depend on adopted configuration for the synthesis reactor(s). Several configurations are described in literature and are commercially available.</div><div>In this work, a reactor configuration of shell-and-tube type, with catalyst on tube-side and coolant on shell-side, and with the shell-side split into two zones (double-zone methanol reactor - DZMR) is described. Such a DZMR allows installing shell-side cooling conditions that are overall non-isothermal; specifically, one shell-side zone operates in isothermal conditions whereas the other shell-side zone operates in non-isothermal conditions. Accordingly, the present work analyzes and compares the DZMR productivity under different shell-side operating conditions, with the thermal oil used as shell-side coolant. Analysis and comparison are carried out by modelling a small-scale DZMR: productivity, yield and carbon conversion are evaluated by means of process modelling in Aspen Plus software.</div><div>Results show that a DZMR with overall non-isothermal shell-side cooling conditions has a high efficiency: methanol productivity (328 tons of MeOH per year), yield and conversion (41 %) are the highest, energy consumption is the lowest and required coolant flowrate is the smallest. The DZMR here described realizes to be operationally flexible and more efficient than conventional shell-and-tube type isothermal reactors.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"276 ","pages":"Article 108288"},"PeriodicalIF":7.7000,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analysis of a methanol synthesis reactor operating in non-isothermal cooling conditions\",\"authors\":\"Grazia Leonzio , Giovanni Manenti , Marcello Maria Bozzini , Roberto Baratti , Flavio Manenti\",\"doi\":\"10.1016/j.fuproc.2025.108288\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Productivity and energy efficiency of industrial units for methanol synthesis strongly depend on adopted configuration for the synthesis reactor(s). Several configurations are described in literature and are commercially available.</div><div>In this work, a reactor configuration of shell-and-tube type, with catalyst on tube-side and coolant on shell-side, and with the shell-side split into two zones (double-zone methanol reactor - DZMR) is described. Such a DZMR allows installing shell-side cooling conditions that are overall non-isothermal; specifically, one shell-side zone operates in isothermal conditions whereas the other shell-side zone operates in non-isothermal conditions. Accordingly, the present work analyzes and compares the DZMR productivity under different shell-side operating conditions, with the thermal oil used as shell-side coolant. Analysis and comparison are carried out by modelling a small-scale DZMR: productivity, yield and carbon conversion are evaluated by means of process modelling in Aspen Plus software.</div><div>Results show that a DZMR with overall non-isothermal shell-side cooling conditions has a high efficiency: methanol productivity (328 tons of MeOH per year), yield and conversion (41 %) are the highest, energy consumption is the lowest and required coolant flowrate is the smallest. The DZMR here described realizes to be operationally flexible and more efficient than conventional shell-and-tube type isothermal reactors.</div></div>\",\"PeriodicalId\":326,\"journal\":{\"name\":\"Fuel Processing Technology\",\"volume\":\"276 \",\"pages\":\"Article 108288\"},\"PeriodicalIF\":7.7000,\"publicationDate\":\"2025-07-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Fuel Processing Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0378382025001122\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fuel Processing Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0378382025001122","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Analysis of a methanol synthesis reactor operating in non-isothermal cooling conditions
Productivity and energy efficiency of industrial units for methanol synthesis strongly depend on adopted configuration for the synthesis reactor(s). Several configurations are described in literature and are commercially available.
In this work, a reactor configuration of shell-and-tube type, with catalyst on tube-side and coolant on shell-side, and with the shell-side split into two zones (double-zone methanol reactor - DZMR) is described. Such a DZMR allows installing shell-side cooling conditions that are overall non-isothermal; specifically, one shell-side zone operates in isothermal conditions whereas the other shell-side zone operates in non-isothermal conditions. Accordingly, the present work analyzes and compares the DZMR productivity under different shell-side operating conditions, with the thermal oil used as shell-side coolant. Analysis and comparison are carried out by modelling a small-scale DZMR: productivity, yield and carbon conversion are evaluated by means of process modelling in Aspen Plus software.
Results show that a DZMR with overall non-isothermal shell-side cooling conditions has a high efficiency: methanol productivity (328 tons of MeOH per year), yield and conversion (41 %) are the highest, energy consumption is the lowest and required coolant flowrate is the smallest. The DZMR here described realizes to be operationally flexible and more efficient than conventional shell-and-tube type isothermal reactors.
期刊介绍:
Fuel Processing Technology (FPT) deals with the scientific and technological aspects of converting fossil and renewable resources to clean fuels, value-added chemicals, fuel-related advanced carbon materials and by-products. In addition to the traditional non-nuclear fossil fuels, biomass and wastes, papers on the integration of renewables such as solar and wind energy and energy storage into the fuel processing processes, as well as papers on the production and conversion of non-carbon-containing fuels such as hydrogen and ammonia, are also welcome. While chemical conversion is emphasized, papers on advanced physical conversion processes are also considered for publication in FPT. Papers on the fundamental aspects of fuel structure and properties will also be considered.