Sulfur recovery catalyst is a key material used to convert acidic gas containing hydrogen sulfide into elemental sulfur. It is widely used in tail gas treatment processes in industries such as petroleum refining, natural gas purification, and coal chemical industry. It mainly achieves efficient sulfur recovery through the Claus process and its improved technology, reduces environmental pollution, and meets strict environmental regulations.
Uses of sulfur recovery catalysts
During the processing of oil and natural gas, a large amount of acidic gas containing H₂S is produced. If discharged directly, H₂S will pollute the atmosphere and harm human health. The role of sulfur recovery catalysts is to convert these toxic gases into valuable sulfur products and realize resource utilization.
Performance of sulfur recovery catalyst
- High activity: maintain high catalytic efficiency in a wide temperature range.
- Anti-poisoning: resist the influence of poisons such as SO₃, moisture, heavy hydrocarbons, etc.
- High mechanical strength: resist air flow erosion and reduce powdering.
- Long life: usually can be used for 3-5 years, reducing the frequency of replacement.
Application of sulfur recovery catalysts
- Refineries: Processing of acid gas produced by desulfurization units.
- Natural gas purification: Processing of high-sulfur natural gas.
- Environmental emission control: Combined with SCOT, tail gas incineration and other processes to meet emission standards.
Sulfur recovery catalyst process advantages
- Recovery rate from 98.5% to 99.99%
- Lower operating costs than liquid iron redox or other non-aqueous sulfur recovery processes.
- High-purity, marketable sulfur
- Destruction of ammonia, BTX, cyanide and heavy hydrocarbons
Sulfur recovery catalyst is the core of the sulfur recovery process, directly affecting sulfur conversion rate and environmental compliance. As environmental protection requirements become increasingly stringent, high-performance, poison-resistant catalysts will become the focus of industry research and development. In the future, more efficient and durable catalysts will help the petrochemical industry achieve green and sustainable development.