在小型加氢反应装置上进行了体相催化剂级配装填技术的研究，结果表明，原料油中二次加工油质量掺炼比从38%提高到70%，体相催化剂体积装填比例从25%提高到43%，可以加工生产超低硫柴油产品。当反应器氢气压力为6.4 MPa时，体相催化剂装填在反应器中部的超深度加氢脱硫活性好于其装填在反应器下部，氢气压力为9.2 MPa时，体相催化剂装填在反应器下部的超深度加氢脱硫活性好于其装填在反应器中部。工业应用结果表明，根据研究结果进行体相催化剂装填，体相催化剂级配技术在装置能力和炼油厂生产目的限制下发挥最大性能，可长期稳定生产超低硫柴油产品。

Study on the grading and loading technology for bulk catalysts is carried out on a small hydrogenation reactor.It is found that the volume loading ratio of bulk catalyst can be increased from 25% to 43%,and ultra-low sulfur-containing diesel can be produced while the blending ratio of secondary processing oil in the raw oil is raised from 38% to 70%.As hydrogen pressure in the reactor is 6.4 MPa,ultra-deep hydrodesulfurization activity of the bulk catalyst loaded in the middle of the reactor is better than that of the bulk catalyst loaded at the bottom of the reactor.As the hydrogen pressure in the reactor is 9.2 MPa,a reverse effect is observed at two loading positions.It is shown from industrial applications results that the bulk catalyst grading technology can give full play to the maximum performance under the limitation of unit capacity and refinery production purpose if bulk catalyst is loaded according to the study results,and ultra-low sulfur-containing diesel can be produced stably for a long term.

李娟(1992-),女,硕士,助理工程师,主要从事加氢精制体相催化剂研发,lijuan.fshy@sinopec.com