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Model-Based Analysis and Integration of Synthetic Methane Production and Methane Oxidative Coupling

Le Saché, Estelle, Peng, Yang, Arellano-Garcia, Harvey and Ramirez Reina, Tomas (2017) Model-Based Analysis and Integration of Synthetic Methane Production and Methane Oxidative Coupling In: the 27th European Symposium on Computer Aided Process Engineering – ESCAPE 27, 01-05 Oct 2017, Barcelona, Spain.

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Abstract

Ethylene is the world’s largest commodity chemical and a fundamental building block molecule in the chemical industry. Oxidative coupling of methane (OCM) is considered a promising route to obtain ethylene due to the potential of natural gas as a relatively economical feedstock. In a recent work, this route has been integrated by Godini et al (2013) with methane dry reforming (DRM) in a dual membrane reactor, allowing an improved thermal performance. In this work, we have explored a more ambitious integrated system by coupling the production of methane and carbon dioxide via coal gasification with the DRMOCM unit. Briefly, our process utilises coal to generate value-added methane and ethylene. In addition, CO2 management is achieved through CO2 methanation and dry methane reforming. Potential mass and energy integration between two systems is proposed as well as the optimum conditions for synthetic natural gas production. The upstream gasification process is modelled to determine the influence of temperature, pressure, and feed composition in the methane yield. The results suggest that the key variables are temperature and hydrogen concentration, as both parameters significantly affect the methane and CO2 levels in the linking stream. This study reports for the first time the linking stream between the two systems with a high methane concentration and the appropriate amount of CO2 for downstream processing.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
NameEmailORCID
Le Saché, Estellee.lesache@surrey.ac.ukUNSPECIFIED
Peng, YangUNSPECIFIEDUNSPECIFIED
Arellano-Garcia, Harveyh.arellano-garcia@surrey.ac.ukUNSPECIFIED
Ramirez Reina, Tomast.ramirezreina@surrey.ac.ukUNSPECIFIED
Date : 5 October 2017
Copyright Disclaimer : © 2017 Elsevier B.V. All rights reserved.
Uncontrolled Keywords : Methanation; Oxidative coupling of methane; Dry reforming; Process integration; Gasification
Related URLs :
Depositing User : Clive Harris
Date Deposited : 05 Sep 2017 12:28
Last Modified : 05 Oct 2017 02:08
URI: http://epubs.surrey.ac.uk/id/eprint/842170

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