What is the difference between coal coke chemical industry and coal chemical industry?

Coal coking is actually a kind of coal chemical industry. Traditional coal chemical industry includes coking, methanol production from coal and calcium carbide production. New coal chemical industry includes coal direct liquefaction, coal indirect liquefaction, coal to natural gas, coal to olefins, coal to dimethyl ether, coal to ethylene glycol and so on. But now the new coal chemical industry is still in its infancy, but it has great development prospects. There are overcapacity in coal coking and coal-to-methanol production. I hope it helps you.