{"title":"天然气反应器甲醇乙醇一体化装置最佳操作条件的确定","authors":"Dimas Laksana Yudharaputra, Sanggono Adisasmito","doi":"10.32996/ijbpcs.2023.5.1.2","DOIUrl":null,"url":null,"abstract":"Methanol and ethanol can be produced from many kinds of feedstock. One of the most preferred methods to synthesize methanol is from natural gas, which is reformed to form synthesis gas (syngas) and converted by a catalyst to form methanol. Conversely, ethanol production mostly comes from biomass, which competes with human food fulfilment. Several pieces of literature conduct syngas transformation to ethanol to solve this problem. However, the experiment is conducted on a lab scale or pilot scale. Before the technology can be mass-produced on a plant scale, we must determine the most suitable operating condition for the reactor to escalate the reactor's productivity. This study is aimed to determine the optimal operating condition for the integrated methanol and ethanol plant, which is the reactors. The software used for the study is Aspen Plus V12.1. The independent variables for all the reactors in this study are the pressure (P) and the temperature (T). We add the feed molar flow ratio as the independent variable for the Steam Methane Reforming (SMR) and the ethanol synthesis reactor. The dependent variable that will be used for the determination of the optimal operating condition of the reactors is the reactant conversion and the product yield. The data validation between the experimental data conducted by other authors and the process modeling result is in good agreement with less than 6% of error for all three reactors. After performing the process simulation and sensitivity analysis to determine the optimal operating condition for the reactors, it is found that the optimal operating condition for the reactors is as follows: (1) SMR reactor: 25 bar pressure, 1,223 K temperature, feed molar flow ratio (H2O/CH4 ratio) of 3, (2) methanol synthesis reactor: 100 bar pressure and 503 K temperature, and (3) ethanol synthesis reactor:110 bar pressure, 583 K temperature, and feed molar flow ratio (H2/CO ratio) of 0.75.","PeriodicalId":127127,"journal":{"name":"International Journal of Biological, Physical and Chemical Studies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Determination of the Optimum Operating Conditions for Integrated Methanol and Ethanol Plant from Natural Gas Reactors\",\"authors\":\"Dimas Laksana Yudharaputra, Sanggono Adisasmito\",\"doi\":\"10.32996/ijbpcs.2023.5.1.2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Methanol and ethanol can be produced from many kinds of feedstock. 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We add the feed molar flow ratio as the independent variable for the Steam Methane Reforming (SMR) and the ethanol synthesis reactor. The dependent variable that will be used for the determination of the optimal operating condition of the reactors is the reactant conversion and the product yield. The data validation between the experimental data conducted by other authors and the process modeling result is in good agreement with less than 6% of error for all three reactors. 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引用次数: 0
摘要
甲醇和乙醇可以由多种原料生产。合成甲醇最优选的方法之一是天然气,天然气经重整形成合成气(syngas),再经催化剂转化生成甲醇。相反,乙醇生产主要来自生物质,这与人类的食物供应竞争。有几篇文献通过合成气转化为乙醇来解决这一问题。然而,该实验是在实验室规模或试点规模上进行的。在该技术可以在工厂规模上大规模生产之前,我们必须确定最适合反应堆的操作条件,以提高反应堆的生产率。本研究旨在确定甲醇乙醇一体化装置的最佳操作条件,即反应器。该研究使用的软件是Aspen Plus V12.1。本研究中所有反应器的自变量均为压力(P)和温度(T),并将进料摩尔流量比作为蒸汽甲烷重整(SMR)和乙醇合成反应器的自变量。用于确定反应器最佳操作条件的因变量是反应物转化率和生成物收率。其他作者的实验数据与过程建模结果的数据验证吻合良好,三个反应器的误差均小于6%。通过过程模拟和灵敏度分析确定反应器的最佳运行条件,发现反应器的最佳运行条件为:(1)SMR反应器:压力25 bar,温度1223 K,进料摩尔流量比(H2O/CH4比)为3;(2)甲醇合成反应器:压力100 bar,温度503 K;(3)乙醇合成反应器:压力110 bar,温度583 K,进料摩尔流量比(H2/CO比)为0.75。
Determination of the Optimum Operating Conditions for Integrated Methanol and Ethanol Plant from Natural Gas Reactors
Methanol and ethanol can be produced from many kinds of feedstock. One of the most preferred methods to synthesize methanol is from natural gas, which is reformed to form synthesis gas (syngas) and converted by a catalyst to form methanol. Conversely, ethanol production mostly comes from biomass, which competes with human food fulfilment. Several pieces of literature conduct syngas transformation to ethanol to solve this problem. However, the experiment is conducted on a lab scale or pilot scale. Before the technology can be mass-produced on a plant scale, we must determine the most suitable operating condition for the reactor to escalate the reactor's productivity. This study is aimed to determine the optimal operating condition for the integrated methanol and ethanol plant, which is the reactors. The software used for the study is Aspen Plus V12.1. The independent variables for all the reactors in this study are the pressure (P) and the temperature (T). We add the feed molar flow ratio as the independent variable for the Steam Methane Reforming (SMR) and the ethanol synthesis reactor. The dependent variable that will be used for the determination of the optimal operating condition of the reactors is the reactant conversion and the product yield. The data validation between the experimental data conducted by other authors and the process modeling result is in good agreement with less than 6% of error for all three reactors. After performing the process simulation and sensitivity analysis to determine the optimal operating condition for the reactors, it is found that the optimal operating condition for the reactors is as follows: (1) SMR reactor: 25 bar pressure, 1,223 K temperature, feed molar flow ratio (H2O/CH4 ratio) of 3, (2) methanol synthesis reactor: 100 bar pressure and 503 K temperature, and (3) ethanol synthesis reactor:110 bar pressure, 583 K temperature, and feed molar flow ratio (H2/CO ratio) of 0.75.