Liquefaction process

Details Liquefaction process Liquefaction process

1979-03-15

1982-09-28

Garvin, Patrick

Mineral oils: processes and products

Phenolic or toxic oils

C10G 102

Patent

active

043517161

ABSTRACT:
Scale formation during the liquefaction of lower ranking coals and similar carbonaceous materials is significantly reduced and/or prevented by pretreatment with a combination of pretreating agents comprising SO.sub.2 and an oxidizing agent. The pretreatment is believed to convert at least a portion of the scale-forming components and particularly calcium, to the corresponding sulfate prior to liquefaction. The pretreatment may be accomplished with the combination of pretreating agents either simultaneously by using a mixture comprising SO.sub.2 and an oxidizing agent or sequentially by first treating with SO.sub.2 and then with an oxidizing agent.

REFERENCES:
patent: 1436289 (1922-11-01), Plauson
patent: 2119647 (1938-06-01), Pier et al.
patent: 2191156 (1940-02-01), Pier et al.
patent: 2221410 (1940-11-01), Pier
patent: 3084118 (1963-04-01), Overholt et al.
patent: 3926575 (1975-12-01), Meyers
patent: 3998604 (1976-12-01), Hinkley
patent: 4072475 (1978-02-01), Schlosberg et al.
patent: 4161440 (1979-07-01), Brunson
Pauling, College Chemistry, (1951), Pub. by W. H. Freeman & Co., San Francisco, Cal., pp. 364-366.

Affiliated with

Also associated with

Rating

Liquefaction process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquefaction process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquefaction process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-398777