Che-Nan Lee

Title: Innovations of Inventor Che-Nan Lee

Introduction

Che-Nan Lee is a notable inventor based in Chiai, Taiwan. He has made significant contributions to the field of gasoline additives, holding a total of three patents. His work focuses on improving the performance and efficiency of fuel additives, which is crucial for modern automotive applications.

Latest Patents

One of Che-Nan Lee's latest patents is titled "Process for manufacturing gasoline additives of ester-free polyoxyalkylene amide." This innovative process involves three consecutive reactions. The first reaction is the amidation of water-soluble low molecular weight polyalkylene polyamine with alkyl acetate at elevated temperatures under nitrogen pressure, converting amines to amides. The second reaction is the butoxylation of the amides with 1,2-epoxybutane to prepare poly(oxyalkylene) amides. The final step is the selective hydrolysis of in situ poly(oxyalkylene)-amine-ester-amides into poly(oxyalkylene)-amine-alcohol-amides, along with the removal of acetic acid byproducts through acid/base hydrolysis and water extraction procedures. This selective hydrolysis is essential for eliminating harmful compositions, thereby enhancing the performance of the additive, particularly in improving engine octane requirements and reducing combustion chamber deposits.

Another significant patent by Che-Nan Lee is for "Poly(oxyalkylene) amide-amine gasoline additives." This invention consists of a unique combination of tertiary amine, amide, and poly(oxybutylene) backbone within the same molecule. The preparation process requires an initiator containing primary and tertiary amines as starting diamines. The primary amine is converted into amide, while the tertiary amine remains unchanged. The amide is then transformed into butoxylates through butoxylation at the CON—H position. This two-step process results in gasoline-soluble additives that exhibit excellent performance in terms of detergency and octane requirement reduction.

Career Highlights

Che-Nan Lee is currently employed at the Chinese Petroleum Corporation, where he continues to innovate in the field of fuel additives. His work has been instrumental in developing more efficient and environmentally friendly gasoline formulations.

Collaborations

Throughout his career, Che-Nan Lee has collaborated with notable colleagues, including Jiang-Jen Lin and Yung-Sheng Ho. These collaborations have contributed to the advancement