Method of recovering exhaust gas from boiler in electrical power generating device using combustible material as fuel and apparatus for performing such method

Patent · Tue Jul 12 00:00:00 EDT 1983

OSTI ID:5487779

Shibuya, K; Ihara, T

A method of and apparatus for recovering exhaust gas from a boiler of a thermal electric power generating device are disclosed. The exhaust gas from the boiler is fed through a conduit to a preheat section of a powder raw material treating device. The heat of the exhaust gas is recovered as a heat source for preheating the powder raw material. The ash contained in the exhaust gas is recovered as part of the powder raw material at the preheat section. The sulfur oxides in the exhaust gas react with the desulfurizing component of the powder raw material at the preheat section, and its reaction product is recovered as part of the powder raw material.

• Assignee: Sumitomo Semento Kabushiki Kaisha (Japan)
• Patent Number(s): US 4392353
• OSTI ID: 5487779
• Resource Relation: Patent Priority Date: Priority date 15 Feb 1980, Japan; Other Information: PAT-APPL-308531
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
EXHAUST GASES
RECOVERY
THERMAL POWER PLANTS
WASTE HEAT UTILIZATION
BOILERS
DESULFURIZATION
ELECTRIC POWER
POWDERS
POWER GENERATION
CHEMICAL REACTIONS
FLUIDS
GASEOUS WASTES
GASES
POWER
POWER PLANTS
WASTE PRODUCT UTILIZATION
WASTES
200105* - Fossil-Fueled Power Plants- Heat Utilization