当前位置: X-MOL 学术Renew. Energy › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Dehydration of bio-alcohols in an enhanced membrane-assisted reactor: A rigorous sensitivity analysis and multi-objective optimization
Renewable Energy ( IF 9.0 ) Pub Date : 2021-06-04 , DOI: 10.1016/j.renene.2021.05.161
Ali Bakhtyari , Roghayeh Bardool , Mohammad Reza Rahimpour , Adolfo Iulianelli

Green and efficient routes for a sustainable and renewable strategy in chemicals and energy delivery are highly demanded in the current status. Developing production routes from bio-alcohols is of immense interest. To achieve such a goal, an enhanced membrane-assisted dehydration reactor for the conversion of bio-alcohols (mainly made up of methanol and ethanol) is suggested. The system can eliminate the innate and produced water through the dehydration reaction, representing an intensified process that favors a conversion enhancement without needing a water purification unit. This study includes a rigorous feasibility study utilizing a validated mathematical model. The impacts of input variables such as feed flowrate, feed temperature, feed composition, and feed pressure, as well as the sweep gas flowrate and temperature, are examined. The sensitivity analysis is conducted in terms of feed conversion, temperature profiles, pressure drop, and desired product distributions. Then, an optimization strategy was developed to obtain the optimum operating conditions of each system leading to maximized conversion and product yields. According to the achievements of this study, the enhanced membrane-assisted dehydration reactor offers a great capacity for converting bio-alcohols and producing considerable quantities of DME from bio-methanol as well as DEE, ethylene, and butylene from bio-ethanol.



中文翻译:

增强型膜辅助反应器中生物醇的脱水:严格的灵敏度分析和多目标优化

在当前状态下,对化学品和能源交付中可持续和可再生战略的绿色和高效路线的需求很大。开发生物醇的生产路线具有极大的兴趣。为了实现这一目标,提出了一种用于生物醇(主要由甲醇和乙醇组成)转化的增强型膜辅助脱水反应器。该系统可以通过脱水反应消除先天水和产出水,这代表了一个有利于提高转化率的强化过程,而无需水净化装置。该研究包括利用经过验证的数学模型进行的严格可行性研究。检查了输入变量的影响,例如进料流速、进料温度、进料成分和进料压力,以及吹扫气流速和温度。敏感性分析是根据进料转化率、温度曲线、压降和所需的产品分布进行的。然后,开发了一种优化策略,以获得每个系统的最佳操作条件,从而实现最大的转化率和产品收率。根据这项研究的成果,增强型膜辅助脱水反应器具有很大的转化生物醇的能力,可以从生物甲醇中生产大量的二甲醚,以及从生物乙醇中生产DEE、乙烯和丁烯。

更新日期:2021-06-11
down
wechat
bug