Method of quenching synthesis gas

Details Method of quenching synthesis gas Method of quenching synthesis gas

1993-05-13

1995-07-11

Kratz, Peter

Gas: heating and illuminating

Processes

Fuel mixtures

48202, 48210, 252373, C10J 346

Patent

active

054317037

ABSTRACT:
The invention is a process for quenching a first synthesis gas mixture containing synthesis gas, molten flyash, water, and carbon dioxide and producing additional synthesis gas consisting of (a) passing the first synthesis gas mixture into a first quench zone; (b) introducing into the quench zone a mixture of pulverized coal in a nitrogen or carbon dioxide carrier gas; (c) endothermically reacting the pulverized coal with the water and the carbon dioxide in the synthesis gas mixture thus producing additional synthesis gas consisting of hydrogen and carbon dioxide and wherein the additional synthesis gas is admixed with the first synthesis gas mixture to form a second synthesis gas mixture; (d) passing the second synthesis gas mixture to a second quench zone; (e) introducing into the second quench zone a cooling gas for admixture with the second synthesis gas mixture, thus cooling the second synthesis gas mixture, where the molten flyash is solidified, and thus forms a third synthesis gas mixture; and (f) passing the third synthesis gas mixture to a solids removal stage for removing the solidified flyash.

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