Hebei Refining Technologies Co., Ltd. has been a trailblazer in clean energy solutions
Deep desulfurization technology for liquefied petroleum gas
Release time:
2020-12-11
The biggest difference between this and other liquefied gas desulfurization technologies lies in the upgraded mercaptan-removing agent alkali regeneration technology, mainly including measures such as alkali functional strengthening agents, three-phase mixed regeneration, fixed-bed regeneration catalysts, and lean agent deoxygenation. The success of the alkali regeneration of the mercaptan-removing agent determines the success of mercaptan removal, so alkali regeneration technology is the core of mercaptan removal technology. The main measures of liquefied gas deep desulfurization technology are all reinforcement measures for agent alkali regeneration. After regeneration by liquefied gas deep desulfurization technology, the cleanness of the lean agent can be comparable to that of fresh alkali solution (mercaptan sulfur ≤100mg/m3, disulfide sulfur ≤100mg/m3, deoxygenation rate ≥90%). Low total sulfur after liquefied gas desulfurization is the main advantage, suitable for enterprises with strict requirements on post-desulfurization total sulfur indicators. Generally, the total sulfur of catalytic liquefied gas can be reduced to below 5ppm, and the actual operating data is below 3ppm; the total sulfur of coke liquefied gas can also be reduced to below 50ppm, and the actual operating data has reached below 10ppm; in addition to low total sulfur after desulfurization, liquefied gas deep desulfurization realizes room temperature regeneration, saving at least 60-140MJ of energy consumption per ton of liquefied gas processed; the service life of the agent alkali is greatly extended, and alkali consumption and slag discharge are reduced to one-fourth of the original slag discharge amount. It achieves four effects: energy saving, emission reduction, reduced operating costs, and improved product quality, and both economic benefits and social and environmental benefits are very considerable. Liquefied gas deep desulfurization is the foundation and guarantee of refinery MTBE deep desulfurization technology, and it also creates more favorable conditions for deep processing of C4. In addition, the liquefied gas deep desulfurization technology also has a functional design for enhanced carbonyl sulfide removal. By using functional solvents and reasonable process design, the carbonyl sulfide removal rate can reach more than 90%, eliminating quality problems caused by the difficulty of carbonyl sulfide removal under special conditions. This technology has been highly recognized by the industry, and more than ten sets of fiber membrane desulfurization units have been upgraded and modified using this technology, with a total industrial Achievements exceeding 80 sets.
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Since its founding in 1996, Hebei Refining Technologies Co., Ltd. (HRT) has been a trailblazer in clean energy solutions, headquartered in Cangzhou High-Tech Zone, Hebei Province, China.
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