◼PRODUCT DESCRIPTION

poisoning performance. In the purification of acetylene tail gas and calcium carbide furnace tail gas, this technology can achieve the removal of unsaturated hydrocarbons (ethylene, acetylene) at a temperature far away from the CO disproportionation temperature. At the same time, it also has efficient hydrogenation conversion ability for oxygen, and has the characteristics of wide adaptability, high purification accuracy, and wide operating temperature range.

◼WORKING   PRINCIPLE

C2H2+2H2→C2H6 C2H4+H2→C2H2  2H2+02→2H₂O2

◼APPLICATION  AREA

This product can be used in the hydrogenation conversion process of industrial tail gases rich in carbon monoxide, such as synthesis gas, acetylene tail gas, calcium carbide furnace gas and yellow phosphorus tail gas.

Core advantages of GR series selective hydrogenation catalysts

• Excellent resistance to CO poisoning

  This is the most prominent advantage of this product. Conventional hydrogenation catalysts rapidly deactivate in high-CO atmospheres due to strong CO adsorption. This product, through its unique formulation and modification technology, resists CO poisoning and maintains high activity and stability in CO-rich environments.

• Able to operate at low temperatures, eliminating the risk of carbon deposition.

  This catalyst operates at temperatures well below the temperature window for the CO disproportionation reaction (2CO → C + CO₂). This fundamentally eliminates catalyst blockage, increased bed pressure drop, and frequent catalyst replacement caused by carbon deposition, ensuring long-term stable operation of the unit.

• "One catalyst, multiple functions" for high purification efficiency.

  Simultaneously achieves deep purification of multiple impurities within a single catalyst bed:

• Removal of unsaturated hydrocarbons: Selectively hydrogenates ethylene, acetylene, and other impurities to ethane.

• Deep deoxygenation: Efficiently catalyzes the hydrogen-oxygen reaction to produce water and removes oxygen.

  This integrated functionality simplifies the process flow, reducing equipment investment and operational complexity.

• Strong adaptability and a wide operating window

It is insensitive to fluctuations in feed gas composition and operating conditions (such as temperature and space velocity), offering wide operational flexibility. It can stably process industrial gases with complex compositions and variable operating conditions, such as acetylene tail gas and calcium carbide furnace gas.

• High purification accuracy to ensure downstream safety
  

It can remove unsaturated hydrocarbons and oxygen to extremely low levels, significantly improving the purity of the product gas. This not only meets the stringent feed gas requirements of subsequent processes, but also completely eliminates the explosion hazard associated with the coexistence of hydrogen and oxygen, resulting in significant safety benefits.

• In summary, the core value of this catalyst lies in its safe, efficient and economical solution to the industry's pain points in CO-rich gas purification. It is a key technology for promoting the resource utilization of industrial exhaust gas and energy conservation and consumption reduction.
  

◼What is CO disproportionation? Why should it be avoided?

The CO disproportionation reaction (2CO → C + CO₂) deposits carbon dust on the catalyst surface, causing pore blockage, decreased activity, and increased pressure differential in the equipment. This catalyst operates at temperatures far below those at which the disproportionation reaction occurs, fundamentally avoiding carbon deposition.

◼How does this catalyst process unsaturated hydrocarbons and oxygen simultaneously?

The specific active components contained in the catalyst can selectively catalyze the hydrogenation of unsaturated hydrocarbons (such as C₂H₂, C₂H₄) to produce ethane (C₂H₆), and at the same time catalyze the reaction of hydrogen and oxygen to produce water, thereby achieving the simultaneous removal of multiple impurities in one bed.

◼Which industrial gases is this catalyst particularly suitable for processing?

It is particularly suitable for complex gas systems rich in CO and containing unsaturated hydrocarbons and oxygen, such as acetylene tail gas, calcium carbide furnace gas, yellow phosphorus tail gas, and synthesis gas. It is a key purification material before these gases are recycled as resources.

◼What are the main advantages of GR catalysts compared to traditional catalysts?

Its main advantages include: excellent resistance to CO poisoning; maintaining high activity under low temperature conditions; removing multiple impurities in one process; wide operating temperature range, stable operation and long life.

◼Is it necessary to strictly control the reaction temperature when using this catalyst?

The catalyst has a wide temperature operating window and strong adaptability, but the reaction temperature still needs to be optimized and controlled according to the feed gas composition and space velocity to achieve the best impurity removal effect and energy consumption balance.