Invention Grant
- Patent Title: Process for treating coal to improve recovery of condensable coal derived liquids
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Application No.: US14151385Application Date: 2014-01-09
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Publication No.: US09598646B2Publication Date: 2017-03-21
- Inventor: Franklin G. Rinker , Timothy J. Kuhn
- Applicant: C2O Technologies, LLC
- Applicant Address: US FL Marco Island
- Assignee: C20 Technologies, LLC
- Current Assignee: C20 Technologies, LLC
- Current Assignee Address: US FL Marco Island
- Agency: MacMillan, Sobanski & Todd, LLC
- Main IPC: C10L5/14
- IPC: C10L5/14 ; C10L5/02 ; C10G5/06

Abstract:
A method for treating coal includes drying coal in an initial drying step. The dried coal is pyrolyzed in a pyrolysis step to form coal char and evolved gases. The coal char is eventually cooled and blended. The evolved gases are condensed in at least two, preferably three or more, distinct zones at different temperatures to condense coal-derived liquids (CDLs) from the evolved coal gas. Noncondensable gases may be returned to the pyrolysis chamber as a heat-laden sweep gas, or further processed as a fuel stream. The CDLs may optionally be centrifuged and/or filtered or otherwise separated from remaining particulate coal sludge. The sludge may be combined with coal char, optionally for briquetting; while the CDLs are stored. Precise control of the condensing zone temperatures allows control of the amount and consistency of the condensate fractions collected.
Public/Granted literature
- US20140190074A1 PROCESS FOR TREATING COAL TO IMPROVE RECOVERY OF CONDENSABLE COAL DERIVED LIQUIDS Public/Granted day:2014-07-10
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