| 摘要: |
| 目的 评估某柴油加氢改质装置催化剂再生后的性能，确认是否满足生产需求。方法 通过催化剂再生前后的装填数据对比、活性损失评价、选择性能分析、产品质量及分布、装置能耗变化等评估催化剂再生后各项性能。结果 评估结果表明，精制平均温度提高3 ℃，裂化平均温度提高11 ℃，再生后的催化剂活性损失较小。液体C5+组分收率达到98.04%，化学氢耗为2.1%，催化剂选择性能良好。目标产品重石脑油收率为27.2%，3号喷气燃料收率为18.7%，柴油收率为47.0%；重石脑油芳潜为56.7%，3号喷气燃料烟点为22.1 mm，柴油十六烷值为61.2，较原料提高了20.7个单位，产品质量优良。结论 催化剂再生后各产品的分布和关键性质指标均达到设计指标，再生的催化剂性能可满足装置实际生产及长周期运行的要求。 |
| 关键词: 柴油 加氢改质 催化剂再生 性能评价 |
| DOI：10.3969/j.issn.1007-3426.2025.01.004 |
| 分类号: |
| 基金项目: |
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| Performance evaluation of regenerated catalyst in diesel hydro-upgrading unit |
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Baoliang LI, Zengyang WEI
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CNOOC Huizhou Petrochemical Company Limited, Huizhou, Guangdong, China
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| Abstract: |
| Objective The aim is to evaluate the performance of the regenerated catalyst in a diesel hydro-upgrading unit and to confirm whether it meets the production requirements. Method The performance of the regenerated catalyst was evaluated by comparing the loading data before and after catalyst regeneration, activity loss evaluation, selectivity analysis, product quality and distribution, and energy consumption change of the unit. Result The evaluation results showed that the average refining temperature increased by 3 ℃, and the average cracking temperature increased by 11 ℃. The regenerated catalyst exhibited minimal activity loss. The yield of C5+ components reached 98.04%, the chemical hydrogen consumption was 2.1%, and the catalyst selectivity was good. The yields of target products were as follows: The target product yield of heavy naphtha was 27.2%, the yield of No.3 jet fuel was 18.7%, and the yield of diesel was 47.0%. The aromatic potential of heavy naphtha was 56.7%, the smoke point of No.3 jet fuel was 22.1 mm, and the cetane number of diesel was 61.2, which was 20.7 units higher than that of raw materials. And the product quality was excellent. Conclusion The distribution and key property indexes of each product after catalyst regeneration meet the design indexes, and the performance of regenerated catalyst can meet the requirements of actual production and long-term operation of the unit. |
| Key words: diesel hydro-upgrading catalyst regeneration performance evaluation |
