◼PRODUCT DESCRIPTION

recovery catalyst with lor ge specific surface area and high strength. The catalyst has the characteristics of uniform particles, low abrasion, high activity and good stability. Its comprehensive

performance and technical indicators have reached the international advanced level.

GR-02SAl203catalyst can be used in the whole bed of any claus reactor of the sulfur recovery unit or in layers with other catalysts of different functions or types.

It is suitable for claus sulfur recovery units in the fields of petrochemicals, coal chemical industry, etc. It can be used in the whole bed of any claus reactor of the sulfur recoveryunit or in layers with other catalysts of different functions or types.

(1)Large specific surface area, more active centers, high activity and good activity stability; (2)The catalyst pore structure is abi modal distribution type pore distribution. small pores provide large specific surface area, active centers and ensure that the catalyst has sufficient mechanical strength. The appropriate amount of large pores reduces the diffusion restriction of process gas inside the catalyst particles, which is conducive to the reactants to reach the active centers more easily;

(3)The catalyst has high strength, low abrasion and long service life.

◼What are the specific advantages of the catalyst's "bimodal pore distribution" structure?

A bimodal pore distribution means that the catalyst possesses both micropores (small pores) and macropores (large pores). The micropores provide a large surface area, hosting numerous active sites and ensuring high reactivity. The macropores act as "highways," significantly improving the mass transfer and diffusion efficiency of reactants and products (especially liquid sulfur), preventing pore clogging and enhancing the catalyst's crush resistance and stability.

◼What is the importance of the GR-02S catalyst's high mechanical strength in actual operation?

High mechanical strength means that the catalyst particles are resistant to abrasion and crushing. In large-scale industrial plants, the catalyst must withstand its own weight, airflow impact, and temperature and pressure fluctuations during startup and shutdown. High strength significantly reduces dust generation during operation and prevents increased bed pressure drop, thereby ensuring stable operation over long periods (typically 3-5 years) and minimizing unplanned shutdowns.

◼Can this catalyst process process gases containing organic sulfur (such as COS and CS₂)?

A: GR-02S is an excellent Claus reaction catalyst, primarily catalyzing the conversion of H₂S and SO₂ to sulfur (2H₂S + SO₂ → 3S + 2H₂O). Its activity in the hydrolysis of organic sulfur (COS/CS₂ + H₂O → H₂S + CO₂) is limited. When treating gases containing organic sulfur, it is generally recommended to load a dedicated hydrolysis catalyst (such as a titanium- or aluminum-based hydrolyzer) in the upper portion of the bed and GR-02S in the lower portion, creating a graded loading pattern to achieve optimal overall sulfur conversion.

◼What industries and equipment is this catalyst primarily suitable for?

It is primarily used in refinery acid gas sulfur recovery units in the petroleum refining industry, natural gas desulfurization plants in the natural gas purification industry, and sulfur recovery units associated with coal gasification in the coal chemical industry. It serves as a core catalytic material for Claus process units in these sectors.

◼How can I determine if a catalyst is deactivated or needs replacement?

Key monitoring indicators include: ① A continuous decline in the system's total sulfur conversion rate, with H₂S/SO₂ concentrations in the tail gas exceeding the specified limit; ② An abnormally high reactor bed pressure drop, possibly due to catalyst pulverization or sulfur blockage; and ③ The reactor inlet temperature must be continuously elevated to maintain conversion. When these indicators deteriorate and cannot be restored through conventional regeneration, catalyst replacement should be considered.

Shandong Weiyijia Co., Ltd. is a high-tech enterprise dedicated to the field of industrial catalytic purification. We specialize in the research, development, production, and sales of a wide range of high-performance catalysts and purifiers, providing key materials and technical support to the global petrochemical, coal chemical, gas purification, environmental protection, and new energy industries.

As a professional catalyst supplier, we deeply understand the core role of catalysts in downstream processes.

Leveraging years of experience in technology research and development and engineering applications, we have developed several mature product lines, including:

• Desulfurizer Series: Efficiently removes inorganic and organic sulfur from feed gases and liquids, protecting downstream equipment.

• Deoxidizer Series: Precisely removes trace oxygen from olefins (such as ethylene and propylene) to prevent catalyst poisoning.

• Dechlorinator Series: Removes chlorides from process materials, protecting equipment from corrosion.

• Customized Catalysts: We provide customized solutions tailored to our customers' specific process conditions and requirements.

Our Core Strengths:

1. Professional Quality, Superior Performance:

   We utilize high-purity raw materials and advanced manufacturing processes to deliver products with high activity, selectivity, mechanical strength, and a long service life. A strict quality control system is implemented throughout every production process, ensuring the stable and reliable performance of each batch of products. This helps customers improve product purity and ensures safe, stable, long-term, full, and optimal operation of their production facilities.

2. Technology-Driven, Cost-Optimized:

   Through continuous formulation innovation and process improvement, we have successfully broken the conventional wisdom that "high quality necessarily comes at a high cost." Leveraging strong independent R&D capabilities, scaled production, and lean management, we achieve precise control over production costs, enabling us to offer customers highly competitive pricing and directly reduce your overall procurement and operating costs.

3. Customer First, Shared Value:

   We are not just a product supplier, but a trusted partner. Our professional technical service team provides timely technical consultation, application guidance, and after-sales support to ensure optimal product performance. We are committed to creating maximum value for our customers with cost-effective solutions, achieving mutual benefit.

Choosing us means choosing reliable quality, competitive pricing, and a long-term technical partner. We sincerely look forward to working with you to jointly promote the green and efficient development of the industry!