1) letdown residual oil tank
2) vacuum residue
Multi-dimension separation and composition characterization of Dagang vacuum residue;
Fundamental study on mild thermal cracking of vacuum residue with industrial hydrogen donors;
Structure features of the supercritical fluid extraction and fraction tailing of Dagang vacuum residue;
3) Vacuum residuum
Application of ultrasound in the viscosity reduction of vacuum residuum
The two processing schemes of high-sulfur vacuum residuum in SINOPEC Qilu Branch were compared from the viewpoint of techno-economy: one is to produce heavy asphalt through vacuum deep extraction process,the other is to produce light oil products through VRDS-FCC assembled process.
对中国石化齐鲁分公司高硫减压渣油两种生产方案 ,即减压深拔工艺生产重交沥青和VRDS FCC组合工艺生产轻质油品进行技术经济比较。
Several deasphalted oil samples were obtained from vacuum residuum and FCC slurry oil deasphalted at continuous propane deasaphalting pilot equipment.
4) residuum pump at the bottom of vacuum tower
After analyzing the working characteristics and fault forms of residuum pump at the bottom of vacuum tower of distillation unit, some technical measures are gradually found and used in practice.
5) Daqing vacuum residual oil
Considering the high cost for chemical agents and low benefit in alkaline-surfactant-polymer combination flooding process, Daqing vacuum residual oil was selected as the raw material for the preparation of cost-effective oil-displacement surfactant OCS in the laboratory.
6) Liaohe vacuum residue
The local chemical structure of non-porphyrin Ni in Liaohe vacuum residue was investigated by X-ray absorption fine structure (XAFS) spectroscopy.
为获得石油中非卟啉Ni的结构信息 ,采用荧光法对辽河减压渣油中非卟啉Ni的K边进行了XAFS测试 。
All kinds of methane upgrading reactions of Liaohe vacuum residue, under conditions of existing decentralization catalysts, are examined, in order to explore the possibility of upgrading heavy oil by using of methane as hydrogen resource.