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◼PRODUCT DESCRIPTION
GR-3 oxidation catalyst is used to remove trace CH4, H2, CO, light hydrocarbons and other impurities in oxygen or oxygen-containing inert gas. It has the characteristics of good strength, high activity, high precision of impurity removal, good heat resistance and long servic life.
◼WORKING PRINCIPLE
H2+O2→ H2O2
CO+02→CO2
CH4+02→CO2+H2O
◼APPLICATION AREA
The catalyst can be used to remove trace CH4, H2, CO, light hydrocarbons and other impurities in gases in the fields of petrochemical industry, metallurgical industry, semiconductor electronics, scientific research and other new technologies.




◼What gas background impurities are best treated by the GR-3 catalyst?
It is specially designed for oxygen-containing inert gases (such as nitrogen, argon) or oxygen itself, and can efficiently remove trace H₂, CO, CH₄ and light hydrocarbon impurities therein. It is particularly suitable for occasions with extremely high gas purity requirements in industries such as semiconductors and special metallurgy.

◼Does this catalyst require strict control of reaction temperature during use?
The catalyst has good low-temperature activity and heat resistance, can operate stably in a wide temperature range, and has great operational flexibility. However, the temperature still needs to be optimized according to the actual gas composition and space velocity to achieve the best impurity removal effect and energy consumption balance.

◼Can GR-3 be used to remove impurities in an oxygen-free environment?
No. Its operating principle relies on oxygen as a reactant, and impurities cannot be removed through catalytic oxidation in the absence of oxygen. If you need to treat an oxygen-free background gas, consider adding an appropriate amount of air or oxygen.
◼What are the main advantages of GR-3 compared to similar products?
Its main advantages include high mechanical strength, excellent impurity removal accuracy (it can reduce many combustibles to extremely low levels), good thermal stability and long service life, making it particularly suitable for continuously operating industrial environments.

◼What is the typical service life of this catalyst?
The service life depends on many factors such as impurity concentration, operating airspeed, temperature and operation continuity. Under normal operating conditions, it can usually reach 2-4 years. Due to its high strength and good heat resistance, it is not easy to pulverize or fail.




Shandong Weiyijia Chemical Co., Ltd. is a Chinese manufacturer and supplier of oxidation catalysts. A high-tech enterprise specializing in the research, development, production, and sales of oxidation catalysts, Weiyijia Chemical is based in China and serves the global chemical, environmental protection, energy, and other sectors. Its reliable product quality and solid technical support have earned recognition from domestic and international customers.
The company's core products include precious metal catalysts and metal oxide catalysts, which are widely used in waste gas treatment, gas purification, industrial catalytic oxidation, and other processes. These include VOCs waste gas treatment, carbon monoxide removal, inert gas purification, methane conversion, and various chemical synthesis reactions. They feature high activity, excellent stability, and long service life.
Weiyijia Chemical focuses on technological innovation and process optimization. With a professional R&D team and a comprehensive production quality management system, Weiyijia Chemical can provide customized catalyst solutions based on customer needs. Its products are widely used in the petrochemical, pharmaceutical, electronics, lithium battery, and environmental protection industries, and are exported to numerous countries and regions.
Adhering to the philosophy of "survival through quality, development through technology," the company is committed to becoming a leading global supplier of high-performance catalysts, creating value for customers and promoting green and low-carbon development in the industry.
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