Leo J Jaehnig

Title: Innovations of Leo J Jaehnig in Coal-Oil Slurry Heating Processes

Introduction

Leo J Jaehnig is an accomplished inventor based in New Orleans, LA (US). He is known for his significant contributions to the field of coal-oil slurry heating processes. His innovative approach has led to the development of a unique method that enhances the efficiency of heating coal-oil slurries.

Latest Patents

Jaehnig holds a patent for a process that controls the gas to slurry volume ratio to achieve a gas holdup of about 0.4 when heating a flowing coal-oil slurry and a hydrogen-containing gas stream. This process allows for operation with virtually any coal to solvent ratio, ensuring efficient heat transfer and satisfactory pressure drops. The critical minimum gas flow rate for any given coal-oil slurry depends on various factors, including coal concentration, particle size distribution, and the composition of the solvent. His findings indicate that operating with multiple heating zones can further enhance system efficiency.

Career Highlights

Jaehnig's career is marked by his work with The Pittsburg & Midway Coal Mining Company. His expertise in coal liquefaction preheaters has made him a valuable asset in the industry. He has demonstrated that the coal-oil slurry and hydrogen-containing gas stream behave as a Newtonian fluid at shear rates exceeding 150 sec^-1. His research emphasizes the importance of maintaining a stable flow regime to prevent shifts from homogeneous to non-homogeneous flow.

Collaborations

Jaehnig has collaborated with notable colleagues, including Walter A Braunlin and Alan Gorski. Their combined efforts have contributed to advancements in the field of coal processing and heating technologies.

Conclusion

Leo J Jaehnig's innovative work in coal-oil slurry heating processes showcases his dedication to improving efficiency in energy production. His patent and research findings have the potential to significantly impact the coal industry.