Direct conversion of methane to C/sub 2/'s and liquid fuels: First quarterly technical progress report, October 1--December 31, 1987

Technical Report · Wed Jun 15 00:00:00 EDT 1988

OSTI ID:6716774

Warren, B K; Campbell, K D

Methane oxidative coupling studies were carried out in an atmospheric quartz reactor at temperatures between 700 and 800/degree/C. New catalysts prepared and studied included doped alkaline earth catalysts, lanthanide oxides, and proprietary catalysts. Neodymium oxide, Nd/sub 2/O/sub 3/, was found to be as active and selective as samarium oxide, Sm/sub 2/O/sub 3/, in contrast to literature reports. Proprietary Union Carbide catalysts (UCC-S:1) showed initial methane conversions and C/sub 2/ selectivities comparable to literature catalysts. Atypically low carbon dioxide to carbon monoxide ratios (typically ten times lower than those seen in the literature or other catalysts tested) and high ethylene to ethane ratios (3 to 6 compared to typical literature ratios below 1) were obtained. These results are interesting because ethylene is more valuable than ethane and carbon monoxide is more valuable than carbon dioxide. With these UCC-S:1 catalysts, rapid deactivation was coupled with an observed shift in product ratios toward those more typical in the literature. Initial cases for process conceptualization studies were selected. The Comparison Case will consist of the conversion sequence from methane to synthesis gas to methanol to olefins to liquid hydrocarbon fuels. Case 1 will consist of the conversion of methane to ethylene and ethane. Case 2 will be the direct conversion of methane to C/sub 2/'s followed by conversion to liquid hydrocarbon fuels. 7 figs., 18 tabs.

• Research Organization: Union Carbide Corp., South Charleston, WV (USA). Solvents and Coatings Materials Div.
• DOE Contract Number: AC22-87PC79817
• OSTI ID: 6716774
• Report Number(s): DOE/PC/79817-1-Rev.1; ON: DE89002158
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
CATALYSTS
RESEARCH PROGRAMS
METHANE
CONVERSION
NEODYMIUM OXIDES
CATALYTIC EFFECTS
SAMARIUM OXIDES
ETHANE
ETHYLENE
FISCHER-TROPSCH SYNTHESIS
LIQUID FUELS
OXIDES
PROGRESS REPORT
REACTION KINETICS
SPECIFICITY
TEMPERATURE EFFECTS
YIELDS
ALKANES
ALKENES
CHALCOGENIDES
CHEMICAL REACTIONS
DOCUMENT TYPES
FUELS
HYDROCARBONS
KINETICS
NEODYMIUM COMPOUNDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
SAMARIUM COMPOUNDS
090100* - Hydrocarbon Fuels- (-1989)