The solvent extraction severity for deasphalting of VR in DACC technology ( a combination process of VR solvent deasphalting, ammonia from asphalt and DAO catalytic cracking) was studied.
前言:研究了“溶剂脱沥青-沥青制氨-催化裂化组合工艺”脱沥青的抽提深度。
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