Evaluation of Pollution Control in Fossil Fuel Conversion Processes. Gasification: Section 1. Lurgi Process

Evaluation of Pollution Control in Fossil Fuel Conversion Processes.
Gasification: Section 1. Lurgi Process - 1974

Summary				1
Introduction				3
1	Process Description			5
	1.1	Process Facilities		5
		1.1.1	Plant Site	5
		1.1.2	Coal Storage and Pretreatment	7
		1.1.3	Gasification	10
		1.1.4	Tar Separation	14
		1.1.5	Shift Conversion	14
		1.1.6	Gas Purification	14
		1.1.7	Methanation	15
		1.1.8	Compression and Dehydration	16
	1.2	Auxiliary Facilities		16
		1.2.1	Oxygen Plant	16
		1.2.2	Sulfur Plant	17
		1.2.3	Incineration	19
		1.2.4	Power and Steam Production	20
		1.2.5	Raw Water Treatment	24
		1.2.6	Gas Liquor Treatment and Effluent Water Treatment	26
		1.2.7	Ash Disposal	27
2	Environmental Considerations			29
	2.1	Air Emissions		29
		2.1.1	Oxides of Nitrogen	29
		2.1.2	Sulfur Emissions	31
		2.1.3	Particulates Emissions	32
		2.1.4	Other Pollutants	33
		2.1.5	Trace Elements	34
	2.2	Water Pollution		38
		2.2.1	Ammonia	41
		2.2.2	Phenols	41
		2.2.3	Other Aqueous Pollutants	41
		2.2.4	Water Quality Plan	43
	2.3	Solids		43
		2.3.1	Ash	43
		2.3.2	Chemicals	44
		2.3.3	Trace Elements	44
	2.4	Noise		45
3	Thermal Efficiency			46
4	Process Alternatives			50
	4.1	Engineering Modifications		50
	4.2	Process Improvements		51
	4.3	Technology Needs		51
5	Glossary and Conversion factors			53
6	References			54

Appendix I				59