Systems studies of coal-conversion processes using a reference simulator. Final report, March 12, 1976-August 12, 1979

Abstract

proposal was resubmitted in November 1975 and the project was initiated on. March 12, 1976 under the aegis of the newly formed ERDA Fossil Demonstration Plants Division. As part of the initial contract task schedule the BIGAS/SRC based 11 Clean Boiler Fuels froin Coal 11 conceptual process was selected as project base case flowsheet. Purdue University proceeded with data gathering activities for this process including meetings with representatives of the Pittsburgh & Midway Coal Company, the ERDA SRC contractor; the Bituminous Coal Research Laboratory, the BIGAS gasifier developer; PERC; IGT; Oak Ridge; the Bureau of Mines, Morgantown, and other relevant data sources. On J~ly 20, 1976 by letter from the contract technical representative, ERDA requested that the CBFC process be abandoned in favor of the conceptual process proposed by the Illinois Coal Gasification Group. This process had been presented to ERDA in response to an RFP for Pipeline Gas Demonstration Plants, and incorporated concepts tested during project COED, involved a proprietary COGAS gasification/combustion section, the proprietary Hail hydrotreating unit, as well as the RMP bulk methanation system. By letter dated August 2, 1976, Purdue University informed ERDA that the change was acceptable but that it would result in a four month delay in project time tables, assuming process data were released to Purdue by the end of August, 1976.-By ~-1ay of the following year such data were still not forthcoming because of complications in the negotiations between (now) DOE and ICGG. At that time, (Contract Amendment Dated 7/7/77 DOE requested, and Purdue agreed, to•~ndertake an additional task under the existing contract. This task involved the formulation of and literature

Tennessee Valley Authority atmospheric fluidized-bed combustor simulation interim annual report, January 1-December 31, 1979

“…are predicted via the previous bubble-growth code. Devolatization of coal is assumed to be uniform throughout the hed, ;incl thP y~R1,ds and composition of volatile products are predicted via the model of Reklaitis et al (1977) for Illinois No. 6 coal.…”

“…In this work, the devolatilization models of Suuberg, Peters, and Howard (1977) and Reklaitis et al (1977) are chosen. At present these models appear to be reasonable for estimating the total volatile yield and yolatile composition.…”