化工学报2019，Vol.70Issue(10)：4012-4020,9.DOI:10.11949/0438-1157.20190612
沥青质含量对重油中氢气溶解度影响的研究
Effect of asphaltene contents on hydrogen solubility in heavy oils
摘要
Abstract
Hydrogen is an important reaction component in the oil hydrogenation process, and its solubility in petroleum fractions is a key factor affecting the hydrogenation process. Nevertheless, the sets of data for hydrogen solubility in heavy oils are scarce in literatures, and especially no attention has been paid on the influence of asphaltene on the hydrogen solubility in heavy oils. The solubility of hydrogen in four heavy oil feedstocks was systematically studied by high pressure stirred tank. The variation of hydrogen solubility in heavy oil with temperature and pressure was obtained. The effect of asphaltene content on hydrogen solubility was investigated. It was found that hydrogen solubility in certain oil increased with temperature and pressure under the present measurement conditions. The hydrogen solubility was influenced more significantly by temperature under higher pressure and pressure under higher temperature. The Flash module in Aspen Plus is combined with the PR state equation to establish a hydrogen solubility calculation model, and the hydrogen solubility under high temperature conditions is predicted. The results indicate the contradiction between hydrogen solubility and hydrogen consumption in vacuum residue of Canadian oil sand bitumen is much serious under conventional hydrogenation conditions. The hydrogen solubility of the deasphalted oil is greatly improved, and the removal of resin and asphaltene alleviates the contradiction between hydrogen dissolution and hydrogen consumption.关键词
氢气溶解性/重油/沥青质/PR状态方程Key words
hydrogen solubility/heavy oil/asphaltene/PR equation of state分类
能源科技引用本文复制引用
白翔,郭润,曾招朋,陈振涛,张霖宙,许志明,徐春明,赵锁奇..沥青质含量对重油中氢气溶解度影响的研究[J].化工学报,2019,70(10):4012-4020,9.基金项目
国家自然科学基金项目(21878329,21476257,U1463207) （21878329,21476257,U1463207）
