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Direct Conversion of Methane to C2's and Liquid Fuels (Final Technical Progress Report for the Period October 1,1987 - December 31,1989)

Technical Report ·
DOI:https://doi.org/10.2172/6203907· OSTI ID:6203907
 [1];  [1];  [1];  [1];  [1]
  1. Union Carbide Chemical and Plastics Co., Inc., South Charleston, WV (United States)

Conversion of methane to liquid hydrocarbon transportation fuels in an energy efficient, economical process would represent important technology for extending natural hydrocarbon fuel reserves. Methane coupling catalysts were explored which are the first reported catalyst to provide hundreds of hours of stable operation in the oxidation of methane to C2's with high ethylene to ethane product ratios (2.5-10 or more). These catalysts contain alkaline earth components and require the presence of small amounts of halides, either as a catalysts component or as a periodic or continuous additive to the catalyst. Other classes of catalysts studied include simple perovskites, layered perovskites, metal/molecular sieves, hydrotalcites, catalysts based on Pr/Ce oxygen carriers, low temperature silver catalysts, low temperature catalysts containing certain Group VIII metals, and superacids (in the cofeed mode), and a unique class of sequential mode double perovskites coupling catalysts. Methane coupling products from low pressure coupling reactions (<25 psig) were olgomerized to liquid hydrocarbons without separation and/or compression of the product stream. Economic assessments were completed for several cases of methane coupling, for a comparison case where gasoline and distillate fuels are produced from methane using conventional technology involving reforming, and for the economically best case from methane to gasoline and distillate fuels using methane coupling technology.

Research Organization:
Union Carbide Chemical and Plastics Co., Inc., South Charleston, WV (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy and Carbon Management (FECM)
DOE Contract Number:
AC22-87PC79817
OSTI ID:
6203907
Report Number(s):
DOE/PC/79817--8; ON: DE91005868
Country of Publication:
United States
Language:
English

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