The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 1980
Filed:
Apr. 14, 1978
Chakra J Santhanam, Lexington, MA (US);
Arthur D. Little, Inc., Cambridge, MA (US);
Abstract
Method and apparatus for transporting coal in finely divided form in a coal/liquid slurry. Liquid carbon dioxide, which can be formed by burning coal at the coal source point and liquefying the resulting gaseous carbon dioxide, serves as the slurry liquid. The slurry is pumped through a slurry pipeline to the coal use point under conditions of temperature and pressure to maintain the carbon dioxide in liquefied form. Subsequent to deslurrying, the coal-free carbon dioxide can be liquefied and returned through a liquid pipeline to the coal source point for reuse. The use of liquid carbon dioxide as a slurry medium is also applicable to transporting other finely divided solids such as ores and the like.