论文部分内容阅读
溶剂脱沥青过程是一种重要的渣油深加工技术，溶剂脱沥青过程发展的关键是合理利用脱油沥青。脱油沥青生产道路沥青是合理利用脱油沥青的技术方案之一，通过采用一定的技术手段，国内多数渣油通过溶剂脱沥青可以生产出合格的道路沥青。如通过控制适宜的脱沥青油收率，孤岛、二连等渣油的脱油沥青可以达到合格道路沥青的要求。通过在渣油中掺兑一定比例的催化油浆后溶剂脱沥青，可以使一些渣油的脱油沥青生产的道路沥青的质量大为改善，如大港渣油、二连渣油等。此外，通过在渣油中掺兑催化油浆后溶剂脱沥青还可以从一些不可能生产道路沥青的高含蜡渣油中生产出合格的道路沥青，如南阳高含蜡渣油。渣油溶剂脱沥青技术作为改善道路沥青性质的重要技术手段还可望在国内高等级道路沥青质量提高（ 如降低蜡含量） 中发挥作用。
Solvent deasphalting process is an important residue deep processing technology, the key to the development of solvent deasphalting process is the rational use of deoiled asphalt. Asphalt road asphalt production is the rational use of de-asphalting one of the technical programs, through the use of certain technical means, most of the domestic residue by solvent deasphalting can produce qualified road asphalt. Such as by controlling the appropriate deasphalted oil yield, island, Erlian and other residual oil de-asphalt can reach the requirements of qualified road asphalt. By mixing a certain proportion of the residue in the catalytic slurry after solvent deasphalting, can make some of the quality of the road asphalt produced by the de-bitumen production of residual oil greatly improved, such as Dagang residue, residue and so on. In addition, solvent deasphalting can also be carried out to produce high-quality road asphalt, such as Nanyang High-Wax Residue, from high-waxy residual oils that are not likely to produce road asphalt. Residual solvent deasphalting technology as an important technical means to improve the nature of road asphalt is also expected to improve the quality of domestic high-grade road asphalt (such as reducing wax content) play a role.