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underground coal gasification
The process of converting hard coal into gas has been around for nearly 200 years. The first practical application of gas derived from gasifying mined coal at the surface was in London's Street lighting system in 1807. As early as 1812, the Gas Light and Coke Company of London were formed...- adrienjoe
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- Energy Environment Policy
- Replies: 0
- Forum: Energy, Environment, and Policy