Coal gas
= Coal gas
A historical <fuel> gas mixture made by destructive distillation of <coal>. Its composition depends on the feed and retort conditions; it is not synonymous with natural gas or pure <methane>.
= Coal gas
A historical <fuel> gas mixture made by destructive distillation of <coal>. Its composition depends on the feed and retort conditions; it is not synonymous with natural gas or pure <methane>.