Untitled Document

Gasification of Lignite and Subbituminous Coal, Progress Report for 1945-46 ¹- 1947

			Page
Section 1 1417kb	Introduction		4
		Acknowledgments	5
	Summary abstract		6
	Conclusions		7
	Description of the Grand Forks pilot plant		8
		Plant site	8
		Progress of construction of the plant	8
Section 2 1110kb		Retort building and shop	9
		Chemical laboratory and services	9
		Flow diagram and description of operations	9
		The retort unit	11
		Instrumentation and method of obtaining data	13
Section 3 825kb		The steam drying unit	14
	Description of the Golden pilot plant		15
	Objective and description of tests		15
		Summary of runs at Grand Forks	17
Section 4 1156kb		Summary of runs at Golden	19
	Experimental and observed data		20
		Coals tested	20
		Operating data	24
Section 5 942kb		Properties of chars and dusts	35
Section 5 942kb		Analyses of make gases	43
Section 6 819kb		Analyses of gases in upper and lower annuli	49
	Analysis and discussion of tests and experimental data		49
		Process of distillation and gasification	49
		Comparison of performance of the pilot plants	57
Section 7 925kb		Heat balances and rates of heat transfer	60
	Operating problems		66
		Coal handling and charging	66
		Char discharging	66
		Gas cooling and scrubbing	67
		Gas generation and retort changes	67

1 The Bureau of Mines will welcome reprinting of this paper, provided the following footnote acknowledgment is used: "Reprinted from Bureau of Mines Report of Investigations 4128."

2 Fuel technologist, supervising engineer, Subbituminous Coal and Lignite Section, Bureau of Mines, Golden, Colo.