Hongchang Duan

Title: **Hongchang Duan: Innovator in Molecular Sieve Technologies**

Introduction

Hongchang Duan, an influential inventor based in Beijing, China, has made significant contributions to the field of molecular sieve technologies. With a total of nine patents to his name, Duan's work has focused on advancing catalysts and their applications in the petrochemical industry.

Latest Patents

Duan's recent patents highlight his innovative approach to creating efficient catalytic materials. One of his notable inventions is the "Method for Modifying Molecular Sieve and a Catalytic Cracking Catalyst Containing the Molecular Sieve." This method involves mixing a solution containing ions of a Group MB metal, an organic complexing agent, and a dispersant to form a modified molecular sieve with enhanced activity stability and resistance to heavy metal contamination. The catalytic composition includes a modified molecular sieve, clay, inorganic oxides, and binding agents, demonstrating improved performance in catalytic processes.

Another significant patent is the "Phosphorus-containing Ultrastable Y-type Rare Earth Molecular Sieve and Preparation Method Therefor." This invention pertains to a method for preparing a rare earth molecular sieve, which enhances the conversion rate of heavy oil in catalytic cracking processes. The molecular sieve exhibits specific composition parameters, including the presence of rare earth oxides and phosphorus, contributing to its effectiveness.

Career Highlights

Hongchang Duan is associated with PetroChina Company Limited, where he has been instrumental in developing cutting-edge technologies in catalytic materials. His work emphasizes innovation in molecular sieve modifications, contributing greatly to advancements in the petrochemical sector.

Collaborations

Throughout his career, Duan has collaborated with noteworthy coworkers, including Haitao Zhang and Xionghou Gao. Their collective expertise has enabled progress in their research and development efforts, making substantial impacts in their field.

Conclusion

Hongchang Duan's dedication to innovation and his impressive portfolio of patents underscore his role as a leading inventor in molecular sieve technologies. Through his continued efforts at PetroChina Company Limited, Duan is helping to shape the future of catalysis in the petrochemical industry.