Solid desulfurization agent preparation method

Abstract

The present invention relates to a desulfurization agent preparation method, particular to a solid desulfurization agent preparation method, which comprises: 1, taking main components such as 20% by weight of triethanolamine, 10% by weight of calcium carbonate, 10% by weight of ferric hydroxide, 20% by weight of ammonium carbonate, 20% by weight of aniline carbonate, and 20% by weight of 2-ethyl toluenediamine; 2, mixing the effective component taken in the step 1 and alumina according to a ratio of 1:1; 3, adding an adhesive during the mixing process in the step 2, and adding an appropriate amount of isopentane; and 4, under an anaerobic condition, at a temperature of 180 DEG C, heating the obtained mixture for 30 min. According to the present invention, the solid desulfurization agent has characteristics of high product yield, good desulfurization effect, good product appearance, simple operation, no waste, and environmental protection.

Description

technical field [0001] The invention relates to a preparation method of a desulfurizing agent, in particular to a preparation method of a solid desulfurizing agent used for cracking C5 desulfurization. Background technique [0002] Due to the separation process and raw materials of cracked C5, there will be more than 50 μg / g to 600 μg / g of sulfur in the cracked C5 raw material. When cracking C5 as a raw material for hydrogenation C5, the primary anti-catalyst for hydrogenation on the market is palladium or nickel catalyst. These two catalysts will generate metal sulfides when the sulfur content is high, thereby deactivating the catalyst. , and in the process of reducing the catalyst, the palladium or nickel catalyst will change the crystal form to form a macromolecular crystal form, which will reduce the effective contact area of ​​the catalyst, so the activity of the catalyst will still drop significantly after reduction. Therefore, when cracking carbon five as a hydrogenat...

AI Technical Summary

Problems solved by technology

When cracking C5 as a raw material for hydrogenation C5, the primary anti-catalyst for hydrogenation on the market is palladium or nickel catalyst. These two catalysts will generate metal sulfides when the sulfur content is high, thereby deactivating the catalyst. , and in the process of reducing the catalyst, the palladium or nickel catalyst will change the crystal form to form a macromolecular crystal form, which will reduce the effective contact area of ​​the catalyst, so the activity of the catalyst will still drop significantly after reduction. Therefore, when cracking carbon five as a hydrogenation raw material The content of cracked carbon pentasulfur is required to be less than 10μg / g

When pyrolysis C5 is used as the raw material of petroleum resin, due to the relevant laws promulgated by the state in 2011 to limit the sulfur content of petroleum resin, the control of sulfur content in petroleum resin is achieved by controlling the sulfur content of raw materials, and controlling the sulfur content through other means will complicate the process And greatly increase the production cost, so the sulfur content of petroleum resin raw materials is required to be within 10μg / g