Oil shale retorting process with desulfurization of flue gas

Details Oil shale retorting process with desulfurization of flue gas Oil shale retorting process with desulfurization of flue gas

1976-08-11

1978-01-17

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

201 16, C10G 102

Patent

active

040691322

ABSTRACT:
A method is provided for retorting oil shale whereby full utilization of the heat energy available in the retorted shale and maximum desulfurization of the flue gas released to the atmosphere are simultaneously effected. Basically, the process comprises passing a crushed shale feed upwardly through preheating and retorting zones in a retort vessel wherein eduction of shale oil and product gases is achieved by direct heat exchange with a preheated, recycled portion of said product gases passed countercurrently to the shale feed, and then passing the retorted shale downwardly through combustion and cooling zones. Complete combustion of coke on the retorted shale in the combustion zone not only results in full utilization of the potential heat energy stored within the retorted shale but also in the production of gaseous sulfur components (mostly SO.sub.2) that chemically react with the alkaline components of the shale. Concurrent flow of gas and retorted shale in the combustion zone at temperatures between 900.degree. and 1670.degree. F permits the reaction between said SO.sub.2 and the alkaline components of the shale to proceed essentially to completion, thus desulfurizing the flue gas produced in said combustion zone.

REFERENCES:
patent: 1703192 (1929-02-01), Hampton
patent: 2560767 (1951-07-01), Huff
patent: 2814587 (1957-11-01), Van Dijck
patent: 3475319 (1969-10-01), MacLaren
patent: 3516787 (1970-06-01), Van Nordstrand

Affiliated with

Also associated with

Rating

Oil shale retorting process with desulfurization of flue gas does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oil shale retorting process with desulfurization of flue gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil shale retorting process with desulfurization of flue gas will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2281448