Purification
Hydrodesulfurizatioin Catalyst
SCST-311/312/313 hydrodesulfurizatioin catalyst is used for hydrogenation conversion of organic sulfides in natural gas, coke oven gas, oil field gas, refinery gas, light oil and other gases and liquid hydrocarbons, and can be used in raw gas purification stage of ammonia synthesis, methanol synthesis, hydrogen production and other processes. The catalyst has a high hydrogenation conversion rate for mercaptan, thioether, COS, CS2, etc. After hydrogenation conversion, the organic sulfur content in raw hydrocarbon and syngas can be reduced to less than 0.1ppm.
Physical and Chemical Properties
|
Item |
SCST-311 |
SCST-312 |
SCST-313 |
|
Appearance |
Dusty blue balls or strips |
Brown balls |
Grey balls or strips |
|
Size (mm) |
Ф2~4 Ф2.5×4～10 |
Ф3~5 |
Ф2~4 Ф2.5×4～10 |
|
Strength (N/particle) |
≥50 |
≥50 |
≥50 |
Application Conditions
|
Temperature (℃) |
250~450 |
|
Pressure (MPa) |
normal~6.0 |
|
Space Velocity (h-1) |
500 ~ 2000 (gas); 2 ~ 4(liquid) |
|
Organic Sulfur Content in Feedstock Gas (ppm) |
100~500 |
|
Organic Sulfur Conversion (%) |
≥95 |
Technical Features
Low activation temperature, excellent activity, suitable for being independently applied to high olefin feedstock in adiabatic reactor.
High strength, stable structure, difficult to be pulverized, and resistant to high pressure and high space velocity.
Large pore volume and surface area, uniform distribution of active components, excellent heat resistance and high conversion rate.
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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