渣油改质的技术方案取决于被处理进料(常渣或减渣)加工的难易程度、金属含量以及所需的转化率。固定床常渣和减渣脱硫(ARDS和VRDS)技术,如Axens公司的Hyvahl工艺(与R2R渣油催化裂化相组合),可高转化率地生产中间馏分油和汽油。沸腾床技术如氢-油(H-Oil)法,在需中、高转化率时则较适合于加工高含金属的进料。 方案1:采用R2R和Hyvahl VRDS的零硫燃料炼油 The technical solution for upgrading the residue depends on how easy it is to process the feed (slack or slag), the metal content, and the desired conversion. Fixed bed slagging and slag reduction desulfurization (ARDS and VRDS) technologies such as Axens’ Hyvahl process (combined with R2R resid catalytic cracking) produce middle distillates and gasoline at high conversions. Ebullating bed technology, such as the H-Oil method, is more suitable for processing high metal-containing feedstocks at medium and high conversions. Scenario 1: Zero sulfur fuel refinery with R2R and Hyvahl VRDS