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氧油比控制偏低对重油气化的影响及优化调整
Influence of Low Oxygen-Oil Ratio on Heavy Oil Gasification and Optimization Adjustment
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- DOI:
- 作者:
- 高建武，李凡震，杨海永
Gao Jianwu, Li Fanzhen, Yang Haiyong
- 作者单位:
- 山东鸿丰化学有限公司
Shandong Hongfeng Chemical Co., Ltd.
- 关键词:
- 重油气化；氧油比；调整对比；滤饼；COD
heavy oil gasification; oxygen-oil ratio; adjustment comparison; filter cake; COD
- 摘要:
- 以国内某石化企业的重油气化装置为研究对象，该装置设置有 3台重油气化炉运行方式是 2 开 1 备模式。自装置原始试车结束、B 炉顺利投运后，连续运行至今，但在运行过程中，受烧嘴问题及气化炉拱顶砖砌筑等因素影响，气化炉拱顶温度长期偏高。为避免温度进一步恶化，装置的氧油比长期维持在约 0.929 的低工况下运行，由此引发了外排废水 COD持续偏高、严重影响下游污水处理系统运行，以及滤饼残炭含量过高、产量偏多等一系列问题。通过对比分析该装置氧油比调整前后的运行数据，深入探究氧油比偏低对重油气化过程的具体影响，并验证氧油比优化调整的实际效果，为同类装置的运行操作优化与稳定长周期运行提供了参考。Taking the heavy oil gasification unit of a domestic petrochemical enterprise as the research object, the unit is equippedwith three heavy oil gasifiers in a 2-open 1-standby operation mode. It has been operating continuously since the completion of theoriginal commissioning and the successful startup of Furnace B. However, during operation, the arch top temperature of the gasifierhas been persistently high due to factors such as burner problems and masonry issues of the gasifier arch top bricks. To prevent fur⁃ther temperature deterioration, the oxygen-oil ratio of the unit has long been maintained at a low operating condition of approximate⁃ly 0.929. This has led to a series of problems including continuously high COD in discharged wastewater, which seriously affects theoperation of the downstream sewage treatment system, as well as excessively high residual carbon content in filter cakes and exces⁃sive filter cake output. By comparing and analyzing the operation data before and after oxygen-oil ratio adjustment of the unit, thispaper deeply explores the specific impacts of low oxygen-oil ratio on the heavy oil gasification process and verifies the actual effectof oxygen-oil ratio optimization and adjustment, providing a reference for operation optimization and stable long-term operation ofsimilar units.