Purification
Dechlorination Agent
SCST-321 dechlorination agent is used to remove HCl from various chemical feedstock gas and oil products such as natural gas, refinery gas and coke oven gas, to protect downstream catalysts and reduce equipment corrosion. Chlorides in the feed react with metal oxides in the dechlorination agent to produce stable chlorides, which deposit in the micropores of the catalyst, thereby achieving the purpose of dechlorination.
Physical and Chemical Properties
|
Item |
SCST-321 |
|
Appearance |
Grey white strips |
|
Size (mm) |
Φ3~5×(5~15) |
|
Bulk Density (Kg/L) |
0.60~0.80 |
|
Strength (N/cm) |
≥50 |
Application Conditions
|
Temperature (℃) |
250~450 |
|
Space Velocity (h-1) |
500~3000 (gas) |
|
Pressure (MPa) |
normal~10.0 |
|
Chlorine Content in inlet Feedstock (ppm) |
≤ 100 |
|
Chlorine Content in outlet Feedstock (ppm) |
≤ 0.1 |
Technical Features
With good water resistance, in the process of water vapor reaction, the catalyst has features of high strength, difficult pulverization and low running resistance.
Resistant to high pressure and high space velocity, having a longer service life under a high pressure and high space velocity operation than domestic similar catalysts.
Large specific surface area and high conversion rate, with the chlorine content at the catalyst outlet not higher than 0.1ppm.
Natural gas to hydrogen technology
After pre-treatment, natural gas or other light hydrocarbon raw materials are mixed with steam and enter a special conversion furnace. Under the action of nickel catalyst SCST-20X, steam reforming reaction occurs to generate conversion gas containing H2, CO2, CO and other components. After recovering heat from the conversion gas, the conversion gas containing CO2 and H2 is obtained through water vapor shift reaction, and then purified by PSA to obtain high-purity H2. The PSA tail gas is returned to the conversion furnace for combustion and heat recovery.
Conventional Methanol-to-Hydrogen Technology
1. Methanol-to-hydrogen technology has certain advantages among various hydrogen production technologies due to its wide availability of raw materials, technological maturity, ease of operation, economic efficiency, and environmental friendliness.
2. Process Flow: Methanol and steam, under specific pressure and temperature conditions, pass through a methanol-steam reforming catalyst bed to generate reformed gas, whose main products are carbon dioxide and hydrogen. This reformed gas is then subjected to pressure swing adsorption to obtain product hydrogen with a purity of 99.0%~99.999%.
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