Hisao Nagashima

Title: Hisao Nagashima: Innovator in Catalytic Cracking Technology

Introduction

Hisao Nagashima is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of catalytic cracking technology, particularly in the production of olefins and fuel oil from heavy hydrocarbons. His innovative approach has led to the development of a unique catalyst that enhances the efficiency of this process.

Latest Patents

His most recent patent is titled "Catalytic cracking catalyst for heavy oil and production process for olefin and fuel oil." This invention provides a catalyst that inhibits the production of light paraffins during the catalytic cracking of heavy hydrocarbons. The catalyst effectively produces olefins and is designed to be used in a process that achieves high yields from heavy hydrocarbons. The catalyst comprises a pentasil type zeolite modified with a rare earth element and zirconium, along with a faujasite type zeolite. The process involves bringing a heavy oil containing 50 mass % or more of a hydrocarbon fraction with a boiling point of 180°C or higher into contact with the catalyst to facilitate cracking.

Career Highlights

Throughout his career, Hisao Nagashima has worked with prominent organizations, including the Research Association of Refinery Integration for Group Operation and Idemitsu Kosan Company, Limited. His experience in these institutions has allowed him to refine his expertise in catalytic processes and contribute to advancements in the field.

Collaborations

Hisao Nagashima has collaborated with notable colleagues, including Kenichi Wakui and Kinsho Furusawa. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Hisao Nagashima's contributions to catalytic cracking technology demonstrate his commitment to innovation in the field. His work continues to influence the production processes of olefins and fuel oil, showcasing the importance of advancements in chemical engineering.