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https://www.selleckchem.com/pr....oducts/TSU-68(SU6668
64%, respectively. The results reveal that the nitrogen and sulfur types have changed in the coal residues after the biomethane production, and the instable types such as N-5 and aliphatic sulfur have obvious changes in the low-rank BY and QQ coals. The research provides a sight to the changes about nitrogen and sulfur types after biomethane yield and more deep thoughts about the clean and effective utilization of coals.Fluid catalytic cracking (FCC) unit is one of the means to lighten heavy oil in refineries, and its regenerated