Biological process for the elimination of sulphur compounds present in gas mixtures
Patent
·
OSTI ID:6060653
A continuous process is described for the microbiological conversion and removal of malodorous sulphur-containing organic and inorganic compounds from a gaseous stream, comprising the steps of: (a) providing a column filled with packing material; (b) passing a biologically active liquid stream containing nutrients and bacteria comprising microorganisms of the Thiobacillaceae family through the column whereby the bacteria are immobilized onto all available surface area of the packing material; (c) maintaining the temperature conditions in the column between about 5 C to about 47 C and pH conditions between about 5 to about 9; and (d) concurrently passing a gaseous stream containing the malodorous sulphur-containing organic and inorganic compounds at a liquid/gas mass ratio of about 3:7 for a sufficient period of time so as to allow the bacteria to excrete converted sulphur compounds and recover said converted sulphur compounds as elemental sulphur from the liquid, wherein the excreted and recovered elemental sulphur is in an amount greater than about 97% of said converted sulphur compounds.
- Assignee:
- Grupo Cydsa S.A. de C.V., Garza Garcia (Mexico)
- Patent Number(s):
- A; US 5236677
- Application Number:
- PPN: US 7-852076
- OSTI ID:
- 6060653
- Country of Publication:
- United States
- Language:
- English
Similar Records
Process for cleaning of toxic waste materials by refining and/or elimination of biologically difficult to degrade halogen, nitrogen and/or sulfur compounds
Separation process for the product streams resulting from the dehydrogenation of hydrocarbons
Sulphur trioxide absorption apparatus and process
Patent
·
Mon Mar 27 23:00:00 EST 1989
·
OSTI ID:6102165
Separation process for the product streams resulting from the dehydrogenation of hydrocarbons
Patent
·
Tue Jul 13 00:00:00 EDT 1993
·
OSTI ID:6297678
Sulphur trioxide absorption apparatus and process
Patent
·
Mon Mar 30 23:00:00 EST 1987
·
OSTI ID:6596802
Related Subjects
01 COAL, LIGNITE, AND PEAT
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
BACTERIA
BIODEGRADATION
CHEMICAL REACTIONS
CONTROL
DECOMPOSITION
DESULFURIZATION
ELEMENTS
FLUIDS
GASES
IMMOBILIZED CELLS
MANAGEMENT
MATERIALS RECOVERY
MICROORGANISMS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PH VALUE
PROCESSING
SULFUR
SULFUR COMPOUNDS
SULFUR-OXIDIZING BACTERIA
TEMPERATURE CONTROL
WASTE MANAGEMENT
WASTE PROCESSING
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
BACTERIA
BIODEGRADATION
CHEMICAL REACTIONS
CONTROL
DECOMPOSITION
DESULFURIZATION
ELEMENTS
FLUIDS
GASES
IMMOBILIZED CELLS
MANAGEMENT
MATERIALS RECOVERY
MICROORGANISMS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PH VALUE
PROCESSING
SULFUR
SULFUR COMPOUNDS
SULFUR-OXIDIZING BACTERIA
TEMPERATURE CONTROL
WASTE MANAGEMENT
WASTE PROCESSING