Costeam Process

CO Chemistry, The alcohol/base chemistry observed here led logically to a system including C0/H20/K0H, and accordingly, a series of experiments was performed at 400°C. The COSTEAM Process is similar in nature, but without the purposeful addition of base. Also, the process is applied primarily to lignite, though the COSTEAM chemistry has been applied, less successfully, to bituminous coal also. The results we obtained with the basic system, along with the pertinent citations to earlier work by others, were recently presented (4 )... 

The Costeam process (Appell et al., 1969 Vera and Bell, 1978 Nowacki, 1980) is designed to convert low-rank coals (such as lignite and subbituminous coals) to a low-sulfur product by the noncatalytic reaction of a coal/oil slurry with either carbon monoxide or synthetic gas (carbon monoxide/hydrogen). In the process (Figure 19.9), pulverized coal is introduced into a slurrying tank where it is mixed with process solvent (a process-derived liquid) after which the slurry is fed (with the gas choice) into... 

COSTEAM A process for obtaining both gas and electric power from coal. The coal is first liquified by a process which is catalyzed by modifying iron compounds naturally present in some coals. Developed on a laboratory scale by the Pittsburgh Energy Technology Center in the 1970s. 

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