CO.sub.2 Pretreatment prevents calcium carbonate formation

Details CO.sub.2 Pretreatment prevents calcium carbonate formation CO.sub.2 Pretreatment prevents calcium carbonate formation

1978-08-14

1980-06-03

Gantz, Delbert E.

Mineral oils: processes and products

Phenolic or toxic oils

208 8R, 208 10, C10G 100, C10G 106

Patent

active

042060338

ABSTRACT:
Scale formation during the liquefaction of lower ranking coals and similar carbonaceous materials is significantly reduced and/or prevented by pretreatment with carbon dioxide. The carbon dioxide pretreatment is believed to convert the scale-forming components to the corresponding carbonate prior to liquefaction. The pretreatment is accomplished at a total pressure within the range from about 14 to about 68 atmospheres and a carbon dioxide partial pressure within the range from about 14 to about 34 atmospheres. Temperature during pretreatment will generally be within the range from about 100.degree. to about 200.degree. C.

REFERENCES:
patent: 2191156 (1940-02-01), Pier et al.
patent: 2221410 (1940-11-01), Pier
patent: 3355376 (1967-11-01), Gorin et al.
patent: 3505204 (1970-04-01), Hoffman
patent: 3926775 (1975-12-01), Schroeder
patent: 4121910 (1978-10-01), Stambaugh
Def. Pub. Ser. No. 700,485 Pub. 4/22/69, Hemminger et al.

Affiliated with

Also associated with

Rating

CO.sub.2 Pretreatment prevents calcium carbonate formation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with CO.sub.2 Pretreatment prevents calcium carbonate formation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CO.sub.2 Pretreatment prevents calcium carbonate formation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-714653