Pengyuan Zhang

Title: Pengyuan Zhang: Innovator in Chemical Engineering

Introduction

Pengyuan Zhang is a notable inventor based in Beijing, China. He has made significant contributions to the field of chemical engineering, particularly in the development of methods for treating waste saline water and preparing advanced polyamines. With a total of 2 patents, his work reflects a commitment to innovation and sustainability.

Latest Patents

Pengyuan Zhang's latest patents include a method for treating waste saline water produced in the production process of diphenylmethane diisocyanate (MDI). This invention focuses on the circular use of waste brine, which involves several steps including high-gravity extraction, steam stripping, and oxidation to achieve a total organic carbon (TOC) of less than 8 ppm and total nitrogen (TN) of less than 2.5 ppm. The process successfully regenerates resources such as sodium chloride and water for circular use.

Another significant patent is the method of preparing polymethylene-polyphenyl-polyamine (DAM). This method utilizes a high gravity rotating bed as the mixing reactor for formaldehyde and aniline hydrochloride. The innovative approach reduces by-products during the condensation process and prevents blockages in circulation pipes, resulting in a refined DAM with low impurity content and improved product quality.

Career Highlights

Throughout his career, Pengyuan Zhang has worked with prominent companies in the chemical industry, including Wanhua Chemical (Ningbo) Co., Ltd. and Ningbo Wanhua Polyurethanes Co., Ltd. His experience in these organizations has allowed him to apply his innovative ideas in practical settings, contributing to advancements in chemical manufacturing processes.

Collaborations

Pengyuan Zhang has collaborated with notable colleagues such as Hongke Zhang and Weiqi Hua. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and enhances the development of innovative solutions in the field.

Conclusion

Pengyuan Zhang's contributions to chemical engineering through his patents and career achievements highlight his role as an innovator in the industry. His work not only addresses environmental challenges but also improves the quality of chemical products.