Low-temperature shift catalyst

Thread Content

ICI’s low-temperature catalyst: ICI52-1 is a product from the 1960s; it contains 33% CuO, 52% ZnO, and 15% Al2O3, and represents ICI’s first generation of such catalysts. In the 1970s, ICI developed ICI52-8, which contains 33% CuO, 33% ZnO, and 33% Al2O3, and its operating temperature is also 180–250°C. 52-8 is an improvement over 52-1 and represents ICI’s second-generation product. In the 1980s, ICI developed ICI53-1, which contains 33% CuO, 34% ZnO, and 33% Al2O3. ICI53-1 has better activity and toxicity resistance compared to 52-1 and 52-8, as well as a longer service life; it represents ICI’s third generation of products. Currently, the company is vigorously promoting around the world a series of more advanced low-volatility catalysts, the ICI83 series. The 83 series catalysts have a high copper content; several key steps in their production were improved, and PPT technology was employed. These catalysts exhibit high activity at low temperatures, a strong ability to absorb poisons, and significantly reduced formation of the by-product methanol.