Background: A natural gas processing plant located in a region rich in natural gas resources often encounters the production of sulfides such as hydrogen sulfide (H₂S) and carbon disulfide (CS₂) during its production process. These sulfides not only pose a serious corrosion threat to equipment and pipelines but may also lead to decreased product quality and environmental pollution. Therefore, effective measures must be taken for treatment and control.

Solution and Implementation Steps: The natural gas processing plant selected coal-based activated carbon as the primary technology for treating H₂S and CS₂. The implementation process of the solution is described as follows:

Activated Carbon Selection and System Design: Based on thorough on-site surveys and experimental analyses, Hami Meihao Activated Carbon Co., Ltd. selected coal-based activated carbon that meets the specific requirements of the natural gas processing plant. These activated carbons have high surface area and excellent adsorption performance, effectively capturing and removing sulfides from natural gas.

Equipment Integration and Process Optimization: A comprehensive treatment system was designed, including activated carbon adsorption towers, treatment equipment, and supporting control systems. The size and operational parameters of the adsorption towers were optimized according to natural gas flow rate, sulfide concentration, and process requirements to ensure maximum adsorption efficiency and stability.

System Commissioning and Operational Optimization: After installation, the system underwent rigorous commissioning and operational optimization. Real-time monitoring and data analysis were used to adjust operational parameters of the adsorption towers and schedule activated carbon replacement promptly, ensuring high efficiency and stable treatment performance during long-term operation.

Regular Maintenance and Performance Management: A regular maintenance plan and systematic performance management mechanism were established. Regular inspection and maintenance of adsorption towers, activated carbon replacement, and equipment updates are crucial to maintaining long-term system stability, efficiency, and effectiveness.

Achievements and Benefits: Through the successful application of coal-based activated carbon in petroleum and natural gas processing, the natural gas processing plant has achieved significant results:

Effective Removal of Sulfides: After activated carbon adsorption treatment, the concentrations of hydrogen sulfide and carbon disulfide in natural gas were significantly reduced, meeting strict environmental protection and product quality standards, ensuring safe production and use of natural gas.

Equipment and Pipeline Protection: Reduced corrosion risks to equipment and pipelines, extended equipment lifespan, and lowered maintenance costs and operational risks.

Economic Benefits and Resource Conservation: Activated carbon adsorption technology has demonstrated good treatment effectiveness and economic benefits, with relatively low operating costs. The regeneration and reuse capabilities of activated carbon contribute to resource conservation and reduced treatment costs, supporting the sustainable development of the enterprise.

Technology Promotion and Social Impact: This successful case provides a reliable technical solution and implementation experience for the natural gas processing industry, promoting the advancement of environmental protection technologies and sustainable development within the industry. Additionally, sharing technical expertise and industry collaboration enhances the company's image and influence in environmental and social responsibility.