Are there any good desulfurization agents for removing total sulfur from liquefied gas?

The total sulfur in liquefied gas is mainly in the form of thiol; it can be removed using alkaline solutions and titanium cyanocobalt sulfonate

MDEA (methyl diethanolamine) can also be used

Alkaline solutions and sulfonated titanium phthalo-cobalt cyanide can remove most of the sulfur

1 LPG clean production technology: the total sulfur content after purification is below 5 ppm, meeting the requirements for alkylation raw materials； The liquefied gas desulfurization process produces no alkaline slag or exhaust emissions. A completely new dual desulfurization process for liquefied gas, including H2S removal optimization and pre-purification, upgrading of desulfurization solvents, solvent regeneration and on-line purification, recycling of exhaust gases, oxygen generators, and safe oxygen mixing measures. The concept of clean production: no emissions of waste gases, waste liquids, or solid waste during normal production ； It is fully compatible with existing double-dehydration technologies, and can be implemented through retrofitting on existing equipment ； It turns out that all the factors involved in waste generation are utilized as resources, resulting in overall operating costs that are even lower than before, at around 1–2 yuan per ton of LPG. 2 Super purification technology for the carbon four fraction meets the requirements of subsequent processing steps such as solid acid alkylation following the cessation of MTBE production, achieving super purification of sulfur, oxygen, and water. Hydrogenation, sulfur transfer, extraction, and azeotropic distillation are employed; it has a wide range of suitable raw materials and operates reliably ； It is possible to achieve sulfur and water contents of less than 1 ppm, oxygen compounds of less than 20 ppm, and dienes of less than 50 ppm. The above information is from the website of Hebei Jingzhi Technology Co., Ltd.

1 LPG clean production technology: the total sulfur content after purification is below 5 ppm, meeting the requirements for alkylation raw materials； The liquefied gas desulfurization process produces no alkaline slag or exhaust emissions. A completely new dual desulfurization process for liquefied gas, including H2S removal optimization and pre-purification, upgrading of desulfurization solvents, solvent regeneration and on-line purification, recycling of exhaust gases, oxygen generators, and safe oxygen mixing measures. The concept of clean production: no emissions of waste gases, waste liquids, or solid waste during normal production ； It is fully compatible with existing double-dehydration technologies, and can be implemented through retrofitting on existing equipment ； It turns out that all the factors involved in waste generation are utilized as resources, resulting in overall operating costs that are even lower than before, at around 1–2 yuan per ton of LPG. 2 Super purification technology for the carbon four fraction meets the requirements of subsequent processing steps such as solid acid alkylation following the cessation of MTBE production, achieving super purification of sulfur, oxygen, and water. Hydrogenation, sulfur transfer, extraction, and azeotropic distillation are employed; it has a wide range of suitable raw materials and operates reliably ； It is possible to achieve sulfur and water contents of less than 1 ppm, oxygen compounds of less than 20 ppm, and dienes of less than 50 ppm. The above information is from the website of Hebei Jingzhi Technology Co., Ltd.