Methanation
Methanation Catalyst (Coke-over Gas)
SCST-242 methanation catalyst is suitable for methanation plants using CO, CO2 and H2 as feed gas to produce synthetic natural gas (SNG), compressed natural gas (CNG) and liquefied natural gas (LNG). The catalyst uses nickel as the main active component and modified alumina as the carrier with a variety of co-catalysts. The performance is equivalent to that of similar foreign products.
Physical and Chemical Properties
|
Item |
SCST-242H (pre-reduced state) |
||
|
Appearance |
Cylindrical |
Four-hole and four-slot |
Seven-hole cylindrical |
|
Size, mm |
Φ 3.5×3.5 |
Φ9×(5~7)×2 |
Φ11×(7~9)×2 |
|
Strength, N/grain |
≥150 |
≥100 |
≥100 |
Application Conditions
|
Temperature, ℃ |
250~700 |
|
Pressure, MPa |
≤5.0 |
|
Content of Sulfur (S) in Feed Gas, ppm |
≤50 |
|
Space Velocity, h-1 |
≤20000 |
Technical Features
High hydrocarbon conversion capacity; with the ability to increase the production of CH4, and prevent multi-carbon hydrocarbon cracking to resolve carbon;
High selectivity and conversion; no by-products generated in the reforming gas; almost complete conversion of CO;
Excellent heat resistance, operating at 250~700℃ for a long time without shrinkage or deformation;
Special auxiliaries added in the production process; high strength; good wear resistance to effectively reduce the crushing and wear of the catalyst during use, to maintain a small and stable pressure drop for the catalyst bed.
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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