High-temperature iron-chromium and low-temperature copper-zinc-aluminum shift catalysts converting CO and steam into additional hydrogen.
Sinotech's shift catalyst platform covers high-temperature iron-chromium shift and low-temperature copper-zinc-aluminum shift duty, converting CO and steam into additional hydrogen while reducing CO slip ahead of methanation or PSA purification. Catalyst selection is reviewed against inlet CO concentration, steam ratio, sulfur tolerance and operating temperature window.
Copper-zinc-aluminum low-temperature shift catalyst matching imported-catalyst activity and stability, suited to low steam/gas ratio, short-startup ammonia and hydrogen units.
Iron-chromium high-temperature shift catalyst made by co-precipitation, engineered for improved low-temperature activity, mechanical strength and sulfur resistance.
| Area | Technical Control Focus | Industrial Relevance |
|---|---|---|
| Conversion Performance | Initial and post-heat-resistance CO conversion | Determines hydrogen yield and downstream load |
| Operating Window | Temperature, steam/gas ratio, space velocity | Matches catalyst stage to plant configuration |
| Strength & Abrasion | Crush strength, low-strength particle ratio | Supports bed integrity over catalyst life |
| Sulfur & Chlorine Tolerance | Feed sulfur and chlorine limits | Protects catalyst activity and selectivity |
Each model in the family, set out by process duty, application and role. Full technical datasheets are available on request.
SSC-705 is a copper-zinc-aluminum low-temperature shift catalyst with activity, stability and mechanical strength at or above imported-catalyst benchmarks. Low volume shrinkage and a short start-up time make it well suited to large and medium ammonia plants and energy-saving units running at reduced steam/gas ratio.
SSC-720 and SSC-722 are iron-chromium high-temperature shift catalysts produced by co-precipitation from ferrous nitrate, using a patented tableting process. Formulation adjustments improve low-temperature activity, mechanical strength and sulfur resistance relative to earlier-generation high-temperature shift catalysts.
Shift catalyst selection is reviewed against:
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