Sept. 11, 2003 — A new hydrogen gasification process which is modeled after a coal gasification process has been issued a patent pending. Using gasification technologies, hydrogen can cost around 20 ...

CHEYENNE - A new process being tested to refine low-grade Wyoming coal into cleaner-burning fuel showed encouraging results on reducing mercury pollution when it is blended with regular coal, ...

CASPER, Wyo. — Developing technology to refine low-grade coal into a cleaner-burning fuel could be a boon to Wyoming, a mining company executive said. Denver-based Evergreen Energy Inc. is testing ...