Economics of current and advanced gasification processes for fuel gas production. Final report. [Comparison of air or oxygen blowing for three gasification processes]

Publisher Website
Google Scholar
Abstract
The major economic conclusions of this study can be derived from the data presented. For the Moving Bed gasification systems it is apparent that air blowing the gasifiers results in a significant decrease in both the capital requirement and the cost of services for producing clean fuel gas from coal over an oxygen blown system. The situation is not as obvious in the case of Fluidized Bed technology. Within the accuracy of this study, it appears that the capital costs for air and oxygen blown systems are approximately equal with a very slight edge for the oxygen blown system. The same is true for the relative cost of services for the Fluidized Bed cases. The estimates for atmospheric pressure Entrained Bed systems indicate that capital costs will be higher for air blowing but that the fuel gas cost will be lower from the air blown system than from the oxygen blown plant. The reason is the relatively large amount of byproduct electric power produced by the air blown plant. Therefore, for the Entrained Bed cases, the cost advantage attributed to the air blown system depends heavily on the value assigned to the byproduct electric power. As the value of electricmore » power increases, the advantage for the air blown system will increase. For reasons given, the economic results presented must be used with the utmost caution.« less

This publication has 0 references indexed in Scilit: