Hydrogen sulfide removal from retort off-gases using oil shale

Conference · Sat Jan 01 04:00:00 EST 1977 · Pac. Chem. Eng. Cong., (Proc.); (United States)

OSTI ID:6398173

Compton, L E; Rowan, W H

Occidental Petroleum Corp. has developed a modified in situ retorting process for producing synthetic petroleum from oil shale. Large volumes of hydrocarbon containing gas are byproducts of the oil production. Hydrogen sulfide, a pollutant, is contained in the gas, and its presence is a characteristic common to both in situ, and aboveground retorting methods. A new H/sub 2/S removal technique which is particularly applicable to in situ methods has been developed. H/sub 2/S is reacted with oxygen in the presence of the burned out oil shale produced by retorting. The shale is an oxidation catalyst and is selective to H/sub 2/S in the presence of fuel gases at temperatures below about 300/sup 0/C. Oxidation products are sulfur and sulfur dioxide, in proportions which depend on temperature and O/sub 2/ concentrations. Catalyst activity is partially reduced by water, oxygen in excess of reaction requirements, and other retort offgas components. The environmental impact of the sulfur and SO/sub 2/ produced by the envisioned process using the technique is much less than that of the original H/sub 2/S, because these products are trapped underground through condensation or reaction and are not emitted in the offgas.

• Research Organization: Occidental Res Corp
• OSTI ID: 6398173
• Report Number(s): CONF-770810-
• Conference Information: Journal Name: Pac. Chem. Eng. Cong., (Proc.); (United States) Journal Volume: 1
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040600* -- Oil Shales & Tar Sands-- Products & By-Products
040900 -- Oil Shales & Tar Sands-- Waste management
BITUMINOUS MATERIALS
BY-PRODUCTS
CARBONACEOUS MATERIALS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
ENVIRONMENTAL IMPACTS
FLUIDS
FOSSIL FUELS
FUELS
GASEOUS WASTES
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
MATERIALS
MODIFIED IN-SITU PROCESSES
NONMETALS
OIL SHALES
REMOVAL
SHALE GAS
SPENT SHALES
SULFIDES
SULFUR
SULFUR COMPOUNDS
USES
WASTES