Method for the treatment of coal

Gas: heating and illuminating – Methane -containing product – or treatment or recovery process – Process including chemical reaction

Reexamination Certificate

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C048S127300, C048S1970FM

Reexamination Certificate

active

09800421

ABSTRACT:
A method and apparatus for the treatment of coal to form a product gas such as methane (CH4), and a high purity carbon product. The method includes contacting a coal-containing feedstock with a treatment gas that includes hydrogen. The coal feedstock can advantageously be a low-grade coal that contains high levels of impurities. The methane product gas can be augmented with hydrogen (H2) gas. Reactants and by-products are advantageously recycled within the process system to enhance the economics of the process.

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