By distilling bituminous coal in retorts to obtain gas for illumination, or by burning it in kilns or pits, the residue left behind is called coke, which is simply coal charcoal, and is nearly ...

E-GAS Technology converts coal and other low-grade feedstocks, including petroleum coke, which may have a negative economic value, into a clean synthesis gas containing hydrogen. The process ...

Ohio lawmakers passed legislation Thursday that will give a coal-burning coke plant in southern Ohio renewable energy credits, under that argument that the company is selling the plant’s steam to ...