Location History:
- Ibaraki, JP (1982)
- Ami, JP (1982 - 1991)
Company Filing History:
Years Active: 1982-1991
Title: Kohei Sarumaru: Innovator in Acrylic Acid Production
Introduction
Kohei Sarumaru is a prominent inventor based in Ami, Japan, known for his significant contributions to the field of chemical engineering. He holds a total of 9 patents, showcasing his innovative approaches to the production of acrylic acid.
Latest Patents
Sarumaru's latest patents focus on improving the process for the production of acrylic acid. One of his notable inventions involves a vapor phase catalytic oxidation of propylene into acrolein in the first step, followed by its conversion into acrylic acid in the second step. This process has been enhanced by utilizing the effluent gas from the second step as a diluent for the oxidation in the first step after the acrylic acid has been recovered and catalytically combusted. Additionally, he has specified operational conditions that consider the recycling of the combusted 'waste' gas. This improved process allows for the production of a high concentration of acrylic acid in both gas and condensed forms, while also prolonging the catalytic activity of a Mo-Bi composite oxide catalyst used in the first oxidation reaction.
Another patent details a process for producing acrylic acid where propylene, in admixture with molecular oxygen and steam, undergoes a two-step, vapor-phase, catalytic oxidation. In this method, at least the first-step reaction is conducted in tubes of a shell-and-tube heat-exchanger type structure. The reaction product from the first step is quenched before proceeding to the second-step reaction, with specified reaction conditions in both steps.
Career Highlights
Kohei Sarumaru is affiliated with Mitsubishi Petrochemical Company Limited, where he has made significant strides in chemical production processes. His work has not only advanced the field but has also contributed to the efficiency and effectiveness of acrylic acid production.
Collaborations
Sarumaru has collaborated with notable coworkers, including Takeshi Shibano and Koju Kadowaki, further enhancing the innovative environment in which he works.
Conclusion
Kohei Sarumaru's contributions to the production of acrylic acid through innovative processes highlight his role as a leading inventor in the chemical engineering sector. His patents reflect a commitment to improving industrial processes and advancing technology in his field.