Deep desulfurization and cleaning technology for sulfur tail gas_Hebei Refining Technologies Co., Ltd.

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Nov 20,2018

Deep desulfurization and cleaning technology for sulfur tail gas

Due to harsh operating conditions, it is difficult for sulfur plants to achieve stable long-term operation. This is a special characteristic of sulfur plants, and it is also the reason why production technicians approve of the post-alkali washing technology. So, where are the opportunities and prospects for deep desulfurization and cleaning technology for sulfur tail gas? First of all, insisting on the advantages of post-alkali washing is a backward and short-sighted understanding, which still reflects the idea of prioritizing production over environmental protection. This understanding goes against the trend of clean development. Turning clean air into polluted air and clean water sources into sewage is a violation of the interests of all mankind and future generations. Taxation and heavy taxation are reasonable. Only with the increasing environmental taxes, the concept of clean production will be deeply rooted in the hearts of the people. At present, green measures have been formed to ensure stable and up-to-standard emission of tail gas during the start-up, shutdown, and accident states of sulfur plants. That is the N+1 construction and operation mode, which means that while N sets of sulfur recovery devices are running, one set of sulfur device processing capacity must be reserved, so that any accident or shutdown of any set of sulfur devices can be dealt with at any time. Deep desulfurization and cleaning technology for sulfur tail gas is the best match for the N+1 construction and operation mode of sulfur plants. Don't treat post-alkali washing as a competitor. Enterprises with post-alkali washing have no worries about start-up, shutdown, and accident response, and will be more proactive in further adopting our technology to achieve energy saving and emission reduction goals. Our technology has relatively low investment and good prospects for energy saving and emission reduction. Enterprises with separate regeneration only need to add a fine desulfurization tower; even if the rough desulfurization tower is also increased in height, plus a booster pump, the investment is not much. The benefits are to improve the processing capacity of sulfur plants, reduce the energy consumption or sulfur content emission of the amine removal part, and reduce the wastewater discharge of post-alkali washing. At the 75th anniversary of the founding of the United Nations, General Secretary Xi solemnly promised to the world that China will peak its CO2 emissions in 2030 and achieve carbon neutrality in 2060. This indicates a good prospect for direct discharge technology of sulfur tail gas! After the project of Dagang Petrochemical is put into operation, the direct discharge technology will make phased progress. Although there are some concepts and obstacles to overcome for direct discharge technology, it will eventually succeed. The shutdown or standby of the incinerator is attractive to refining and chemical enterprises with hard indicators of energy saving and emission reduction, especially for many enterprises with surplus steam. Recently, it is the right time to use DS3 single-tower dual-functional solvent to replace imported sulfur tail gas desulfurizing agent; the functional amine liquid for strengthening organic sulfur removal also ushered in an important opportunity in the natural gas desulfurization field in 2020. Due to harsh operating conditions, it is difficult for sulfur plants to achieve stable long-term operation. This is a special characteristic of sulfur plants, and it is also the reason why production technicians approve of the post-alkali washing technology. So, where are the opportunities and prospects for deep desulfurization and cleaning technology for sulfur tail gas? First of all, insisting on the advantages of post-alkali washing is a backward and short-sighted understanding, which still reflects the idea of prioritizing production over environmental protection. This understanding goes against the trend of clean development. Turning clean air into polluted air and clean water sources into sewage is a violation of the interests of all mankind and future generations. Taxation and heavy taxation are reasonable. Only with the increasing environmental taxes, the concept of clean production will be deeply rooted in the hearts of the people. At present, green measures have been formed to ensure stable and up-to-standard emission of tail gas during the start-up, shutdown, and accident states of sulfur plants. That is the N+1 construction and operation mode, which means that while N sets of sulfur recovery devices are running, one set of sulfur device processing capacity must be reserved, so that any accident or shutdown of any set of sulfur devices can be dealt with at any time. Deep desulfurization and cleaning technology for sulfur tail gas is the best match for the N+1 construction and operation mode of sulfur plants. Don't treat post-alkali washing as a competitor. Enterprises with post-alkali washing have no worries about start-up, shutdown, and accident response, and will be more proactive in further adopting our technology to achieve energy saving and emission reduction goals. Our technology has relatively low investment and good prospects for energy saving and emission reduction. Enterprises with separate regeneration only need to add a fine desulfurization tower; even if the rough desulfurization tower is also increased in height, plus a booster pump, the investment is not much. The benefits are to improve the processing capacity of sulfur plants, reduce the energy consumption or sulfur content emission of the amine removal part, and reduce the wastewater discharge of post-alkali washing. At the 75th anniversary of the founding of the United Nations, General Secretary Xi solemnly promised to the world that China will peak its CO2 emissions in 2030 and achieve carbon neutrality in 2060. This indicates a good prospect for direct discharge technology of sulfur tail gas! After the project of Dagang Petrochemical is put into operation, the direct discharge technology will make phased progress. Although there are some concepts and obstacles to overcome for direct discharge technology, it will eventually succeed. The shutdown or standby of the incinerator is attractive to refining and chemical enterprises with hard indicators of energy saving and emission reduction, especially for many enterprises with surplus steam. Recently, it is the right time to use DS3 single-tower dual-functional solvent to replace imported sulfur tail gas desulfurizing agent; the functional amine liquid for strengthening organic sulfur removal also ushered in an important opportunity in the natural gas desulfurization field in 2020.  For technical learning, please refer to "Supplementary materials on the promotion of deep desulfurization and cleaning technology for sulfur tail gas" and "Measures to cope with the emission of tail gas during start-up, shutdown, and accident states in line with the direct discharge technology of sulfur tail gas".

Deep desulfurization and cleaning technology for sulfur tail gas

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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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