关键词: font-family:-apple-system, blinkmacsystemfont, ", font-size:14px, background-color:#FFFFFF, ">焦化汽油加氢装置, 预保护反应器, 体积空速, 氢油比, 硫含量, 终馏点, 密度, 含硫化物

Abstract: A study on the change rule of distillation range of outlet samples of pre-protective reactor in hydrogenation unit of coking gasoline, pre-protective reaction catalysts S-1 and S-2 were used in the laboratory and industrial devices respectively for testing, and the impact of catalyst activity and operating conditions on the refined oil products was investigated. The results show that: in the laboratory, the final boiling point of the outlet samples of the pre-protective reactor using S-1 increased from 199℃ to 214℃. The reason for the increase in distillation range may be the formation of large molecular sulfur-containing compounds from small molecular sulfur-containing compounds, as well as the presence of a large amount of sulfur-containing compounds in the feedstock and outlet samples of the pre-protective reactor; in the industrial device, using the pre-protective reaction catalyst S-2, the final boiling point of the refined oil increased from 204℃ to 227℃, but by increasing the hydrogenation depth of the main reactor, the sulfur mass fraction of the refined oil was reduced to 120 μg/g, and the final boiling point of the outlet samples of the pre-protective reactor was reduced from 227℃ to 204℃, which can effectively remove large molecular sulfur-containing compounds, and the final boiling point of the product can still meet the requirements of the finished product.

Key words: font-family:-apple-system, blinkmacsystemfont, ", font-size:14px, background-color:#FFFFFF, ">Hydrogenation unit of coking gasoline, Pre-protective reactor, Volumetric velocity, Hydrogen-oil ratio, Sulfur content, Final boiling point, Density, Sulfur-containing compounds