Mixing and gasification of coal in entrained flow systems. Final report, 1 May 1977-31 October 1979. [60 references]
This document summarizes research accomplishments of a thirty month, second phase study of mixing and kinetic processes in an entrained coal gasifier. Principal objectives were to measure the extent of particle reaction and dispersion, the extent of gas mixing, the local product composition, and the extent of pollutant formation. Additional objectives included the completion of the one-dimensional computerized model for describing entrained coal gasification systems and the use of that model in analyzing the gasification processes, and extension of the coal reaction model to two-dimensional systems. Non-reactive mixing tests were completed to quantify gas and particle mixing rates independent of chemical reaction. Sixty tests were completed in two different sized ducts where the effects of mixing chamber diameter, secondary velocity, particle size, solids-loading and the influence of a primary wire screen were investigated. The final cold flow tests involved a major facility modification to introduce swirl into the secondary stream. A series of preliminary tests to check-out the modified hardware, and a series of 28 experiments to quantify the effects of secondary swirl on gas and particle mixing rates were completed. Gasification tests were performed in a laboratory-scale entrained coal gasifier which was equipped with a set of water-quench sample probes. Gas and particle samples were extracted from the gasifier and analyzed to determine the extent of gas mixing, particle dispersion and reaction, and gaseous reaction products including nitrogen and sulfur pollutants.
- Research Organization:
- Brigham Young Univ., Provo, UT (USA). Dept. of Chemical Engineering
- OSTI ID:
- 5400875
- Report Number(s):
- FE-2666-F(Vol.1)
- Country of Publication:
- United States
- Language:
- English
Similar Records
Prediction and measurement of optimum operating conditions for entrained coal gasification processes. Quarterly technical progress report, No. 1, 1 November 1979-31 January 1980
Mixing and gasification of coal in entrained flow systems. Final report, November 29, 1974--April 30, 1977