Crude oil or heavy oil pretreatment combined process method

The invention discloses a crude oil or heavy oil pretreatment combined process method, and the method comprises the steps thatcrude oil or heavy oil raw materials firstly enter the solvent deasphalting unit to be subjected to solvent deasphalting operation, an obtained deoiled asphalt product flow enters the separation tower filled with an adsorbent to realize adsorption separation of asphaltene, the asphaltene containing the desorption agent and the regenerated adsorbent are obtained through desorption, and the regenerated adsorbent is recycled after being dried. According to the method, the content of asphaltene, sulfur-nitrogen compounds and metal pollutants in crude oil or heavy oil can be reduced, and the yield and selectivity of deasphalted oil are improved. 本发明公开了一种原油或重油预处理组合工艺方法，该方法包括：原油或重油原料首先进入溶剂脱沥青单元进行溶剂脱沥青操作，所得脱油沥青产物物流进入装有吸附剂的分离塔实现沥青质的吸附分离，得到含解析剂的沥青质和再生的吸附剂，经解析得到沥青质，再生的吸附剂干燥后循环使用。本发明方法可降低原油或重油中沥青质、硫氮化合物及金属污染物含量，提高脱沥青油的收率和选择性。