HQHG-302 TiO2 based Sulphur Recovery catalyst

HQHG-302 is a newly developed sulfur recovery catalyst whose main active component is TiO₂, and several special agents are added into it to further richen its function. HQHG-302 has reached the world advanced level in physic-chemical properties as well as catalytic activity; meantime, its average crushing strength and stability, heat stability, hydro-heat stability and abrasion are superior to those of the imported catalysts. The commercial test result has proved that the Claus activity and CS₂ hydrolysis of HQHG-302 are obviously superior to the imported catalysts.The main advantages of HQHG-302 are as follows:1.Owing to high activity of COS and CS₂ hydrolysis and Claus conversion almost reaching the thermodynamic equilibrium level, therefore HQHG-302 is one of the best sulfur recovery catalysts.2.It is not sensitive to the trace O₂ in acid gas and there is no sulfation poisoning to it.3.Because HQHG-302 only needs 3s of contact time and can be used in the 1200h^-1 GHSV, the reactor volume can be reduced and at the condition of same contact time, the acid gas loading can be improved greatly.4.HQHG-302 is especially applicable to cope with lean acid gas and Claus tail gas.Based on above high properties of HQHG-302, we recommend using HQHG-302 in the 1^st converter to promote COS and CS₂ to be hydrolyzed completely, and to use it in the 2^nd and 3^rd converters to improve Claus conversion.

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