Location History:
- Bejing, CN (1999)
- Beijing, CN (1999 - 2008)
Company Filing History:
2 out of 53 
2 out of 195 
1 out of 667 Years Active: 1999-2008
Title: Yulin Shi: Innovator in Hydrocracking Technology
Introduction
Yulin Shi is a prominent inventor based in Beijing, China, known for his significant contributions to the field of hydrocracking technology. With a total of three patents to his name, he has made notable advancements in processes that enhance the quality of gasoline and other petroleum products.
Latest Patents
One of Yulin Shi's latest patents is a process for reducing sulfur and olefin contents in gasoline. This innovative process involves contacting gasoline feedstock and hydrogen with a hydrorefining catalyst and a paraffin-modification catalyst. The resulting effluent is separated to yield a hydrotreated gasoline fraction that is free of mercaptan, with a sulfur content of less than 200 ppm and olefins content below 20% by volume, while minimizing octane loss. This hydrotreated gasoline fraction serves as a valuable blending component for final gasoline products.
Another significant patent by Yulin Shi pertains to a distillate hydrocracking catalyst and the process for its preparation. This invention features a hydrocracking catalyst that includes nickel, tungsten, fluorine, zeolite, and alumina. The catalyst composition consists of 0.5-5.0 wt % fluorine, 2.5-6.0 wt % nickel oxide, and 10-38 wt % tungsten oxide, among other components. This catalyst demonstrates excellent desulfurization and denitrogenation activities, along with higher selectivity for middle distillates compared to prior art.
Career Highlights
Yulin Shi has had a distinguished career, working with notable organizations such as China Petrochemical Corporation and the Research Institute of Petroleum Processing, Sinopec. His work in these institutions has allowed him to develop and refine his innovative technologies in the petroleum sector.
Collaborations
Throughout his career, Yulin Shi has collaborated with esteemed colleagues, including Yahua Shi and Yanping Zhang. These partnerships have contributed to the advancement of his research and the successful implementation of his inventions.
Conclusion
Yulin Shi's contributions to hydrocracking technology and his innovative patents have significantly impacted the petroleum industry. His work continues to pave the way for advancements in gasoline quality and processing efficiency.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.