Industrial Fuel Gas Demonstration Plant Program. Task III report, demonstration plant mechanical design. Volume II. Air separation

Technical Report · Sat Dec 01 04:00:00 EST 1979

DOI:https://doi.org/10.2172/5721886· OSTI ID:5721886

In the plant for producing oxygen, air is compressed to approximately 85 psig and cooled to 100/sup 0/F by means of air compressors and the air compressor aftercooler. Condensate from KO drums is routed to the cooling tower as make-up water. Compressed air from the aftercooler KO drum is fed to the air separation package, and to the credit generation system. The air separation package, consisting of heat exchangers and cryogenic distillation columns, produces gaseous oxygen (98 vol %) as the primary product. Gaseous nitrogen (bone dry, 10 ppM O/sub 2/), liquid oxygen and liquid nitrogen are also produced in limited quantities. The product oxygen leaving the air separation package at a temperature of 94/sup 0/F and a pressure of 2.7 psig is compressed to a pressure of 105 psig by the oxygen compressor for delivery to coal gasification. Product gaseous bone-dry nitrogen reports to the plant nitrogen compressors and to gas testing where it is employed as a stripping medium in the CO/sub 2/ stripper. Liquid nitrogen, which will be produced continually, is stored for subsequent vaporization by either the liquid nitrogen vaporization package or the instrument nitrogen vaporization package. The liquid nitrogen vaporization package will provide gaseous nitrogen for start-up and shutdown of the plant. When the air separation package operates at less than its design capacity for gaseous oxygen production, it is capable of producing liquid oxygen for storing in the liquid oxygen storage tank. Gaseous oxygen, generated by vaporizing liquid oxygen in the oxygen vaporization package will be used as an emergency back-up source of oxygen feed gas. The 1000 tons of storage capacity specified for liquid oxygen allows over 13 hours of back-up at full capacity (3 gasifiers).

• Research Organization: Memphis Light, Gas and Water Div., TN (USA)
• OSTI ID: 5721886
• Report Number(s): FE-2582-1(Vol.2)
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
420201 -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COAL GASIFICATION
COMPRESSORS
CRYOGENIC FLUIDS
DEMONSTRATION PLANTS
DESIGN
ELEMENTS
ENGINEERING
EQUIPMENT
FLUIDS
GAS COMPRESSORS
GASES
GASIFICATION
LIQUIDS
NITROGEN
NONMETALS
OXYGEN
PRODUCTION
SEPARATION PROCESSES
SPECIFICATIONS
STORAGE
THERMOCHEMICAL PROCESSES
U-GAS PROCESS