Development of an advanced, continuous mild gasification process for the production of co-products
During this quarter the work on Task 3, char upgrading, was in two areas; upgrading Penelec char made from Penelec filter cake to blast furnace formed coke, and evaluating various bituminous pitch binders. The formed coke from Penelec filter cake was of good quality with a high crush strength of 3000 pounds. The reactivity was not equal to that of conventional coke but it is felt that it could be made to equal conventional coke with further study, specifically by adding binder coal to the raw material recipe. The work evaluating bituminous pitch binders confirmed earlier thinking that will be valuable to a commercial scale-up. Asphalt binders are compatible with coal tar binders and produce a coke of equal quality. Hence asphalt binders can be used to supply deficiencies of tar production in units employing coals with insufficient volatile matter to supply enough tar for the coking process. Asphalt binders have about a 50% savings from coal tar pitch. During the 4th Quarter of 1991, a total of 15 Continuous Mild Gasification Unit (CMGU) test runs were made. Efforts continued to determine the optimum forward/reverse ratio to maximize coal feed rate. The success of these efforts has been limited with a maximum coal feed rate of 400 lbs/hr obtainable with a caking coal. The handicap of not having screw shaft heaters cannot be overcome by adjustment of the forward/reverse ratio.
- Research Organization:
- Coal Technology Corp., Bristol, VA (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC21-87MC24116
- OSTI ID:
- 7233308
- Report Number(s):
- DOE/MC/24116-T11; ON: DE92017761
- Country of Publication:
- United States
- Language:
- English
Similar Records
Development of an advanced, continuous mild gasification process for the production of co-products. Quarterly report, October 1, 1992--December 31, 1992
Development of an advanced, continuous mild gasification process for the production of co-products. Quarterly report, January 1, 1993--March 31, 1993
Related Subjects
BINDERS
EVALUATION
CHARS
REFINING
COAL GASIFICATION
BY-PRODUCTS
FORMED COKE PROCESSES
BENCH-SCALE EXPERIMENTS
COAL TAR
PITCHES
PROGRESS REPORT
DOCUMENT TYPES
GASIFICATION
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PROCESSING
PYROLYSIS PRODUCTS
TAR
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification
010500 - Coal
Lignite
& Peat- Products & By-Products