| 摘要: |
| 针对1.8×106 t/a催化汽油加氢脱硫装置原料与混合汽油产品(轻汽油+重汽油)之间的研究法辛烷值(RON)损失较大的情况,从原料组成、SHU单元反应温度和分离塔操作等6个影响因素进行了分析。确定了分离塔的操作和HDS单元反应深度是影响辛烷值损失的两个关键因素,原料组成变化和SHU反应深度是影响辛烷值损失的两个重要因素。从两个关键因素和两个重要因素出发,实施了提高装置自控率、与上游催化装置联合优化、SHU反应系统和分离塔调整优化等改进措施。到2019年10月,辛烷值损失为2.0,满足辛烷值损失≤2.2的设计要求。 |
| 关键词: 催化汽油 加氢脱硫 研究法辛烷值损失 影响因素 改进措施 |
| DOI：10.3969/j.issn.1007-3426.2020.05.002 |
| 分类号: |
| 基金项目: |
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| Influence factors analysis of octane number loss in catalytic gasoline hydrodesulfurization unit and improvement measures |
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Zhao Deqiang
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PetroChina Lanzhou Petrochemical Company, Lanzhou, Gansu, China
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| Abstract: |
| In view of the much loss of RON between the raw material of 1.8×106 t/a catalytic gasoline hydrodesulfurization unit and the mixed gasoline product (light gasoline + heavy gasoline), the influencing factors were analyzed from six aspects, such as raw material composition, reaction temperature of SHU unit, operation of separation tower. It was determined that the operation of the separation tower and the reaction depth of HDS unit were two key factors affecting the RON loss, and the change of raw material composition and reaction depth of SHU were two important factors affecting the RON loss. Based on the two key factors and two important factors, some improvement measures were implemented, such as improving the automatic control rate of the unit, optimizing jointly with the upstream FCC unit, adjusting and optimizing the SHU reaction system and the separation tower. By October 2019, the RON loss was 2.0, which met the design requirement of ≤2.2. |
| Key words: catalytic gasoline hydrodesulfurization research octane number loss influencing factor improvement measure |
