Abstract

Natural gas provides intermediates for both the chemical and the transportation fuel industries. Although these industries face very different market constraints, a common research objective is the design of efficient processes for direct conversion of methane. New routes have emerged, such as oxidative coupling, which could be used to liquefy and transport economically remote gas. Oxidative coupling is also seen as an alternative to steam cracking for ethylene production in industrialized countries. Recalling several recently published process evaluations, we review the merits of oxidative coupling for direct conversion of natural gas in comparison to proven indirect technologies via synthesis gas. Also, attention is given to new routes based on natural gas for the production of chemicals currently derived from ethylene, such as vinyl chloride.

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