Wenjun Mao

Title: Innovations of Wenjun Mao in Environmental Protection

Introduction

Wenjun Mao is a prominent inventor based in Beijing, China, known for his significant contributions to environmental protection technologies. With a total of four patents to his name, he has focused on developing innovative solutions for sulfur removal and catalytic processes.

Latest Patents

Mao's latest patents include a desulfurizer designed for the conversion and absorption of high-concentration carbonyl sulfide, as well as a desulfurizer for catalytic conversion and absorption of carbon disulfide. The first patent provides a high-concentration carbonyl sulfide conversion-absorption type desulfurizer suitable for medium-low temperature applications. This desulfurizer consists of 50%-75% magnetic iron oxide red (FeO), 5%-10% alkali metal oxide (KO), 5-35% anatase TiO, and 5-10% shaping binder. The preparation method involves uniformly mixing metatitanic acid, derived from recycled ferrous sulfate, with KCO, followed by calcination at 500°C-700°C. The resulting mixture is then combined with magnetic iron oxide red and binder, roll molded, and dried to produce the desulfurizer, which boasts a hydrolysis conversion of carbonyl sulfide exceeding 99% and a sulfur capacity greater than 25%.

The second patent highlights the use of magnetic iron oxide red (FeO) as a catalyst for oxidizing methanthiol to produce dimethyl disulfide. This innovative approach offers high catalytic selectivity and is characterized by low cost and a straightforward preparation process, making it suitable for industrial applications.

Career Highlights

Mao has worked with notable companies such as Beijing SJ Environmental Protection and New Material Co., Ltd. His work in these organizations has allowed him to develop and refine his innovative technologies aimed at improving environmental sustainability.

Collaborations

Mao has collaborated with esteemed colleagues, including Zhenyi Liu and Liying Li, contributing to the advancement of environmental technologies through teamwork and shared expertise.

Conclusion

Wenjun Mao's innovative patents and career achievements reflect his commitment to environmental protection and sustainability. His work continues to influence the field of environmental technology, showcasing the importance of innovation in addressing global challenges.