Company Filing History:
2 out of 53 
2 out of 3,100 
2 out of 2 Years Active: 1999-2000
Title: **Innovations of Longya Xu: A Pioneer in Alkylation Catalysts**
Introduction
Longya Xu is an accomplished inventor based in Liaoning, China. With a total of two patents to his name, Xu has made significant contributions to the field of chemical engineering, particularly through his work on alkylation catalysts. His inventions are already making an impact in industrial applications, enhancing the efficiency of chemical processes.
Latest Patents
Xu's latest patents focus on advanced alkylation catalysts. The first patent describes an alkylation catalyst consisting of 50 to 70 wt % of hydrogen type ZSM-SM-11 co-crystalline zeolite that includes a rare earth element, combined with a porous inorganic oxide matrix material. This novel catalyst exhibits superior activity, selectivity, and stability in the alkylation process compared to prior art. The catalyst enables improved preparation of ethyl benzene by alkylating benzene with ethylene, achieving higher ethylene conversion and ethyl benzene selectivity.
His second patent features a rare earth-containing zeolite with a cocrystalline structure of ZSM-5 and ZSM-11. It specifies the weight ratio of the ZSM-5 to ZSM-11 structures and provides a detailed chemical formula in terms of mole ratios for its oxides. This innovative zeolite displays excellent acid hydrothermal stability and resistance to contamination from impurities, proving to be useful in various hydrocarbon conversion processes.
Career Highlights
Longya Xu has gained invaluable experience through his work with prominent organizations, including the China Petrochemical Corporation and the Dalian Institute of Chemical Physics at the Chinese Academy of Sciences. His endeavors within these institutions have aided in the development of groundbreaking solutions to complex chemical challenges, further establishing his reputation as a key figure in catalysis research.
Collaborations
Throughout his career, Xu has collaborated with distinguished colleagues such as Shurong Zhang and Guangyu Cai. These partnerships have fostered the exchange of ideas and expertise, contributing to the advancement of their collective work in the field of chemical engineering.
Conclusion
Longya Xu's contributions to alkylation catalysts exemplify his dedication to innovation in chemical engineering. With his patents paving the way for enhanced chemical production processes, Xu's work not only impacts academic research but also holds practical implications for the industry. His ongoing efforts will undoubtedly continue to drive advancements in this vital area of technology.