Gas generator research and development bi-gas process. Interim report, July 1978-June 30, 1979

Technical Report · Wed Aug 01 00:00:00 EDT 1979

DOI:https://doi.org/10.2172/5539545· OSTI ID:5539545

Life tests of catalysts identified by number are reported. The data from PEDU Test No. 30 confirmed that it is possible to operate under conditions of combined shift and methanation for extended periods of time without experiencing catalyst deactivation through carbon formation. The data from PEDU Test No. 31, using the same catalyst charge as used in Test No. 30, were evaluated and again confirmed the feasibility of operating the fluidized-bed methanator at low feed hydrogen-to-carbon monoxide ratios for extended periods of time. In PEDU Test No. 32 the catalyst, a noble metal-promoted nickel catalyst, was the most active of any tested to date. It also showed greater methanation selectivity than the BI-GAS pilot plant methanation catalyst. The data show that with this catalyst it was possible to obtain a product gas meeting pipeline quality specifications in a single pass through the fluidized bed methanator, without the need for polishing methanation (and without the need for secondary carbon dioxide removal). PEDU Test No. 33 reinforced the conclusions from Test No. 32 that the excellent activity and thermal stability of the catalyst are offset by its rather poor mechanical stability. In PEDU Test. No. 34 the carbon content of the catalyst increased from an initial level of 2.6 to a final level of 4.0 percent, and the data from this and previous PEDU tests with this catalyst suggest that significant catalyst deactivation will occur when the carbon content exceeds 3 percent. In PEDU Test No. 35 useful conversions of 98 percent were obtained under these conditions, and, although the final carbon content of the catalyst was 1.4 percent, the catalyst showed no tendency toward deactivation. In PEDU Test No. 36 the thermal stability and attrition resistance of the catalyst were also satisfactory. The catalyst appeared to have potential for use in a combined shift and methanation application, and this will be investigated further.

• Research Organization: Bituminous Coal Research, Inc., Monroeville, PA (USA); Phillips Petroleum Co., Homer City, PA (USA)
• DOE Contract Number: EF-77-C-01-1207
• OSTI ID: 5539545
• Report Number(s): FE-1207-65(Vol.1); BCR-L-1002(Vol.1)
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
BI-GAS PROCESS
PROCESS DEVELOPMENT UNITS
CATALYSTS
PERFORMANCE TESTING
SERVICE LIFE
CARBONACEOUS MATERIALS
COAL GASIFICATION
DEPOSITION
DEPOSITS
EXPERIMENTAL DATA
FLUIDIZED BED
MATERIAL BALANCE
METHANATION
TABLES
CHEMICAL REACTIONS
DATA
DATA FORMS
FUNCTIONAL MODELS
GASIFICATION
INFORMATION
NUMERICAL DATA
TESTING
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification