Laird C Fletcher

Title: Innovations in Lubricating Oil Rerefining by Laird C. Fletcher

Introduction

Laird C. Fletcher is an accomplished inventor based in Natchitoches, Louisiana, known for his significant contributions to the field of lubricating oil rerefining. With a total of four patents to his name, Fletcher has developed innovative processes that enhance the quality and efficiency of oil recycling.

Latest Patents

Fletcher's latest patents focus on solvent extraction processes for rerefining used lubricating oil. One notable invention involves a method for removing impurities from both heavy and light lube oil fractions obtained from waste lubricating oil. This process utilizes tetrahydrofurfuryl alcohol in an extraction column to effectively purify the oil. The impurities in the light lube oil fraction are removed, and the oil-rich raffinate undergoes steam distillation and stripping at reduced pressure. The heavy lube oil fraction is purified similarly, ensuring high-quality end products. Another patent details a distillation and extraction process that further refines used oil, employing tetrahydrofurfuryl alcohol to eliminate remaining impurities. This innovative approach not only improves the recovery of lubricating oil products but also minimizes coking and cracking during the process.

Career Highlights

Fletcher is currently associated with Delta Central Refining, Inc., where he applies his expertise in oil refining technologies. His work has significantly impacted the industry, leading to more sustainable practices in oil recycling.

Collaborations

Fletcher has collaborated with notable colleagues, including Richard H. O'Blasny and Harold J. Beard, contributing to advancements in the field of lubricating oil rerefining.

Conclusion

Laird C. Fletcher's innovative work in the rerefining of lubricating oil showcases his commitment to improving oil recycling processes. His patents reflect a deep understanding of chemical engineering and a dedication to sustainability in the oil industry.