||Evaluation of molten scrubbing for fine particulate control /
Poe, G. G. ;
Waterland, L. R. ;
Schreiber., R. J.
||Acurex Corp., Mountain View, Calif. Aerotherm Div.;Industrial Environmental Research Lab., Research Triangle Park, N.C.
|| Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory ; For sale by the National Technical Information Service,
||EPA/600/2-77/067; EPA-68-02-1318; EPA-ROAP-21ADL-029
Air pollution control equipment ;
Electric power plants ;
Combustion products ;
Process charting ;
Design criteria ;
Industrial wastes ;
Numerical analysis ;
Cost analysis ;
High temperature tests ;
High pressure tests ;
Performance evaluation ;
Fused salts ;
Coal gasification ;
Molten salt scrubbers ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||vi, 30 pages : illustrations ; 28 cm.
One important proposed use of low Btu fuel gas derived from coal gasification processes is the generation of electric power by combustion and expansion of the gas through a gas turbine. Successful operation of such a system is predicated on the conservation of sensible heat of the fuel gas. However, the raw gas from the gasification process contains impurities, notably sulfur compounds and particulate, which are incompatible with turbine operation and must therefore be removed. The report gives results of an evaluation of molten scrubbing for fine particulate control, a concept that study results indicate as seeming to be feasible. Application of the concept to fine particulate clean-up in advanced energy processes seems possible. Molten scrubbing is especially well-suited to processes where simultaneous removal of sulfur compounds is desired. However, before effective molten scrubbing systems can be developed for particulate removal, two important problems need to be solved: (1) finding construction materials at an acceptable cost which can adequately withstand the highly corrosive scrubbing medium presented by hot molten liquids; and (2) improving gas/liquid separation and mist eliminator designs so that liquid carryover satisfies emission standards or gas turbine inlet specifications. Based on the report's observations and on the above conclusions, it appears that considerable development work would be required to investigate the aforementioned problems before a final assessment of the feasibility of this concept could be made.
Prepared by Aerotherm Division/Acurex Corporation under Contract No. 68-02-1318, Task 24, ROAP No. 21ADL-029, Program Element No. 1AB012. Issued Mar. 1977. Includes bibliographical references (page 29). Microfiche.