Linked from
The 7 pages that link to Coal gasification, each with the reason it gives.
Coal miningRelated: Some mined coal is converted into gas for chemical production or energy.
CoalRelated: Gasification uses coal as feedstock for fuels and chemical production.
Coal tarRelated: Gasification processes can produce tar alongside gas and other byproducts.
SyngasBroader topic: It is a major solid-feedstock route to syngas.