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It has been widely used for precision desulfurization in the production processes of ammonia, methanol, methanol, methane, synthetic fuels, food CO₂, polypropylene, etc. The EAC-2 or EAC-3 type activated carbon desulfurizer has been officially named as T102 and T103 type activated carbon desulfurizer by the standardization technical unit of fertilizer catalysts under the Ministry of Chemical Industry and Hubei Province in January 1997, and has been listed as a national official product.

1. Compared with ordinary desulfurizers, T102 and T103 fine desulfurizers have the following characteristics:
1. High desulfurization accuracy. The desulfurization accuracy of ordinary desulfurizer is outlet H₂S≤ 1.0ppm， Used for coarse desulfurization; And EAC fine desulfurizer has high desulfurization accuracy for export H₂S≤ 0.03ppm。
2. Fast response speed. Research has shown that the penetration velocity of EAC is 2-3 times that of ordinary desulfurizers. When used in industry, the air velocity for ordinary desulfurizers is around 200~500h-1, while the air velocity for EAC is around 1000~2000h-1.
3. The working (penetration) sulfur capacity of the refined desulfurizer is high. Research has shown that the working sulfur capacity of EAC type fine desulfurizer is 3-5 times that of other room temperature desulfurizers.

2. Main physical and chemical properties:

III. Reaction Principle and Quality Inspection Standards
1. Reaction principle
The H₂S in the feed gas reacts with the remaining O₂to form sulfur deposits in the micropores.
The reaction equation is: H₂S+1/2O₂=S+H₂O          △ H=-434. 0KJ／moI

2. Technical indicators (sulfur capacity in the table refers to working sulfur capacity or breakthrough sulfur capacity)