Utilization of sulphur dioxide for energy production

Patent · Tue Jul 12 04:00:00 EDT 1988

OSTI ID:6803523

Lin, P W

A process for effecting the continous desulphurization of gases containing sulphur oxides and producing steam is described comprising the steps of: transmitting gases having sulphur oxides to catalytic converter means, communicating the sulphur trioxide rich flue gas to first heat exchanging means in order to convert steam to superheated steam and cool the sulphur trioxide rich flue gas, returning a sulphur trioxide rich flue gas to the catalytic converter means in order to convert further the flue gas to sulphur trioxide rich flue gas, transmitting the sulphur trioxide rich flue gas to a fluidized bed reactor and providing a calcium containing reactant to the reactor; transmitting a heated medium from the reactor to steam drum means for providing saturated steam to second heat exchanging means, withdrawing the reaction product of the reactant and sulphur oxides, transmitting a desulphurized exit gas of the reactor through the second heat exchanging means, in a nonrecirculating manner, in order to convert water to steam, communicating the exit gas to third heat exchanging means for further extraction of heat therefrom, and transmitting the desulphurized exit gas to an exit.

• Assignee: NOV; EDB-88-169100; NOV-88-026143
• Patent Number(s): US 4756893
• OSTI ID: 6803523
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
AIR POLLUTION CONTROL
BOILERS
CATALYTIC CONVERTERS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHEMICAL REACTORS
CONTROL
DESULFURIZATION
EQUIPMENT
FLUE GAS
GASEOUS WASTES
HEAT EXCHANGERS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
STEAM
STEAM GENERATION
STEAM GENERATORS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SULFUR TRIOXIDE
VAPOR GENERATORS
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION
WASTES