This process accomplishes the simultaneous removal of the carbonyl sulfide (COS) and hydrogen cyanide (HCN) contained in the gas produced by the gasification (partial oxidation) of vacuum residues, petroleum coke, or coal. By use of a newly developed catalyst, this process has realized a high removal efficiency for both COS and HCN.
The catalyst was jointly developed by Sud-Chemie Catalysts, JGC Catalysts & Chemicals Ltd. and JGC Corporation.
Features
Highly efficient removal of both COS and HCN by the following hydrolysis reactions:
COS+H2O → CO2＋H2S
HCN+H2O → CO+NH3
Highly effective catalyst for removal of both COS and HCN
Highly steam-resistant catalyst with low carrier deterioration, even in the presence of high steam partial pressure, by adoption of the state of the art carrier
Reaction temperature is 150 to 250 °C, and reaction pressure is from atmospheric to 8.0MPa.
Applications
Removal of COS/HCN from a gas produced by the gasification (partial oxidation) of vacuum residues, petroleum coke, or coal. (Maximum COS and HCN concentrations in feed gas should be 1000 and 500 ppm, respectively.)
Experience
Application to purification of gasification product – 3 units
