Hybrid processes for sustainable chemicals production from shale gas and ethanol

Chang He, Jingzheng Ren

Research output: Chapter in book / Conference proceedingChapter in an edited book (as author)Academic researchpeer-review

Abstract

With focus on the shale gas-to-chemicals project, systematic studies on process design, techno-economic modeling, and environmental impacts have captured growing attention. This chapter is concerned with the process design and optimization of an integrated shale gas monetization process for chemicals production. From a sustainability point of view, corn-derived bioethanol is incorporated as a renewable feedstock to reduce the environmental footprint of the entire process. Overall, the proposed hybrid process consists of six process areas, namely gas treatment, natural gas liquids cutting, oxidative coupling of methane, cracking and separation, dehydration and separation, and utility. An integrated framework based on evolutionary NSGA-II algorithm is developed for the life cycle bi-objective optimization of the process modeled in Aspen HYSYS. In addition, an energy integration model using mixed-integer linear programming is integrated in the optimization framework. Optimization results show that, even considered as a high carbon feedstock, shale gas can be converted into chemicals in a more cost-effective and environment-friend way.
Original languageEnglish
Title of host publicationTowards Sustainable Chemical Processes
Subtitle of host publicationApplications of Sustainability Assessment and Analysis, Design and Optimization, and Hybridization and Modularization
PublisherElsevier
Chapter14
Pages355-378
ISBN (Electronic)9780128189344
ISBN (Print)9780128183762
DOIs
Publication statusPublished - 2 Jul 2020

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