Integrated cyclic scrubbing and condensate stripping process for the removal of gaseous impurities from gaseous mixtures

Patent · Tue Oct 11 00:00:00 EDT 1983

OSTI ID:5498627

Osman, R M

A process for removing acid gases such as CO/sub 2/ and H/sub 2/S from gas streams using a cyclic aqueous alkaline scrubbing solution which is circulated between an absorption and regeneration stage is disclosed. This process is improved by integrating within this cyclic system a process scheme wherein condensed steam having gaseous impurities dissolved therein is recovered from the feed gas and subjected to a pressure below which scrubbing solution regeneration takes place. While maintaining this pressure, the process condensate is heated, boiled and stripped to evolve a vaporous mixture comprising steam and gaseous impurities which are compressed and introduced into the regeneration stage. By this process, useful work is performed by low temperature process streams thereby improving the overall efficiency of the cyclic process.

• Assignee: Exxon Research and Engineering Co.
• Patent Number(s): US 4409191
• OSTI ID: 5498627
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020800* -- Petroleum-- Waste Management
03 NATURAL GAS
030700 -- Natural Gas-- Waste Management
04 OIL SHALES AND TAR SANDS
040900 -- Oil Shales & Tar Sands-- Waste management
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
ABSORPTION
AIR POLLUTION CONTROL
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CONTROL
EFFICIENCY
ENERGY EFFICIENCY
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASEOUS WASTES
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
REGENERATION
REMOVAL
SCRUBBING
SULFIDES
SULFUR COMPOUNDS
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION
WASTES