高酸原油加氢改质技术研究

采用两种典型高酸原油进行了加氢改质技术的研究。研究结果表明：在低压、高空速条件下，低硫高酸的蓬莱原油经加氢改质后可作为普通原油加工；在高压、低空速条件下，高硫高酸重质的胜利混合原油经加氢改质后，酸值、硫含量、残炭值以及重金属含量大幅度降低，API度提高，加氢原油的常渣可直接作为催化裂化原料。本文还考察了操作条件对加氢脱酸的影响。试验结果表明：随着温度升高，脱酸率线性增高；随着体积空速的增大，脱酸率线性降低；反应压力降低会显著降低脱酸率。

STUDY ON THE HYDRO-UPGRADING OF HIGHLY ACIDIC CRUDE OILS

The hydro-upgrading of highly acidic crude oils was studied using two types of typical crude oils. The results indicated that Penglai crude could be processed as ordinary crude after hydro-upgrading under low pressure and high LHSV. The acid value, contents of sulfur, CCR and heavy metals of Shengli commingled crude decreased significantly after hydro-upgrading under high pressure and low LHSV, and its API gravity increased as well. The atmospheric residue of hydro-upgraded Shengli commingled crude could be used as RFCC feedstock directly. The relationships between operating conditions and hydro-deacidification were investigated. It was found that under low pressure and high LHSV, the acid removal rate increased with the increase of reaction temperature and decreased with the increase of LHSV; the decrease of hydrogen partial pressure could cause the reduction of acid removal rate significantly.