4.4 Article

Use of Oxidative Dehydrogenation of Ethane as a Supplemental Catalytic Reactor Configuration for Oxidative Coupling of Methane Process as an Alternative Way to Increase C2H4 Amount

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TOPICS IN CATALYSIS
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SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11244-022-01575-9

关键词

Catalytic reactor; OCM; Ethylene; ODHE; Methane conversion

资金

  1. Iran National Science Foundation

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This study investigates the increase in ethylene production through the oxidative coupling of methane (OCM) process and the oxidative dehydrogenation of ethane (ODHE) as a supplemental process in a consecutive reactor media. The proposed configuration improves operative conditions and enhances ethylene production in consecutive reactors. The study analyzes the effects of reactant ratio, temperature, and pressure on conversions, product yields, and selectivities. The results show that increasing the CH4/O2 ratio decreases ethylene yield, while increasing contact time improves ethane conversion rate.
The present study aimed to investigate the increase of ethylene production in oxidative coupling of methane (OCM) process and oxidative dehydrogenation of ethane (ODHE) as a supplemental process in a consecutive reactor media. The proposed configuration would improve the operative conditions and enhance ethylene production in consecutive reactors. In this new structure, the ODHE process followed the OCM process to convert the ethane produced in the OCM process to ethylene, thereby increasing the ethylene yield. The proposed model results have been compared with the data of the conventional OCM reactor. In addition, the effects of reactant ratio, temperature, and pressure were evaluated on the conversions of reactants, product yields and selectivities. The results showed that increasing the CH4/O-2 ratio in the input feed to the coupled reactor reduced the ethylene yield by 0.3%. In addition, increasing contact time increased the ethane conversion rate in the ODHE process. In this new structure for each case, the reactor performance was analyzed based on methane and ethane conversion rates, respectively, in OCM and ODHE processes. An experimental proof-of-concept is required to create validity and safe operation of a new reactor.

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