催化裂化柴油氧化吸附脱硫脱氮工艺研究

通过单因素考察了催化裂化柴油氧化脱硫脱氮效果。结果表明,选用甲酸和30%H2O2作为氧化体系,以磷钨酸为催化剂,糠醛为萃取剂,在氧化温度为60℃,反应时间60min,V（氧化体系）/V（焦化柴油）为0.32,V（甲酸）/V（双氧水溶液）为0.5,磷钨酸用量为0.20g/L,采用二级萃取的优化工艺条件下,可将焦化柴油中硫的质量分数由1339.641μg/g降至19.37μg/g,氮质量分数由750.33μg/g降至7.5μg/g。

The Research on Catalytic Cracking Diesel Oxidation Desulfurization and Denitrification

The effect of catalytic cracking diesel oxidation desulfurization and denitrification was investigated through the single factor.The opti mal conditions were showed as follows： using formic acid and 30% H2 O2 as oxidation system,phosphotungstic acid as catalyst,furfural as extraction agent,the oxidation temperature was 60℃,reaction time was 60min,V（oxidation system）/V（coker diesel）was 0.32,V（formic acid）/V（hydrogen peroxide solution）was 0.5,the amount of phosphotungstic acid was 0.20 g/L,using secondary extraction process.Under these conditions,the sulfur con tent dropped from 1339.641μg/g to 19.37μg/g,and the nitrogen content dropped from 750.33μg/g to 7.5μg/g.