针对渣油催化热裂解装置产生的含硫氨污水中溶解油脱除难题,行业内常规脱除技术存在明显局限,难以实现溶解油深度脱除与硫化氢、氨的有效留存。为此,开发出新型污水脱烃脱油技术,该技术以筛板形式作为塔盘,重点通过精准控制脱烃塔塔顶压力及塔内温度,构建最优脱油工况。通过温压协同调控,最大限度减少污水中硫化氢、氨的挥发流失,同时显著增强污水中溶解油的挥发度,实现溶解油高效深度脱除。工业应用结果表明,对该污水脱烃技术的温度与压力进行协同精准调控,可实现溶解油脱除率达到91.34%~92.78%,同时验证了脱油的可行性和稳定可靠性。该技术的开发与应用,解决了含硫氨污水中溶解油的处理难题,对减污降碳协同增效起到显著推动作用。

Aiming at the difficult problem of removing dissolved oil from sulfur-containing ammonia wastewater produced in residue catalytic pyrolysis units,conventional removal technologies in the industry have obvious limitations and are difficult to achieve deep removal of dissolved oil while effectively retaining hydrogen sulfide and ammonia.Therefore,a new wastewater dehydrocarbonization and deoiling technology has been developed.This technology adopts sieve trays,and focuses on establishing an optimal deoiling condition by precisely controlling the top pressure and internal temperature of the dehydrocarbonization tower.Through the cooperative regulation of temperature and pressure,the volatilization loss of hydrogen sulfide and ammonia in wastewater are minimized,whereas the volatility of dissolved oil is significantly enhanced,thus realizing the efficient and deep removal of dissolved oil.Industrial application results show that through the precise cooperative control of temperature and pressure in this wastewater dehydrocarbonization technology,the removal rate of dissolved oil can reach 91.34%-92.78%,which verifies the feasibility,stability and reliability of deoiling.The development and application of this technology solve the treatment problem of dissolved oil in sulfur-containing ammonia wastewater,and play a significant role in promoting the synergistic effect of pollution reduction and carbon reduction.