Brian Keith Johnston

Title: Brian Keith Johnston: Innovator in Natural Gas Liquefaction

Introduction

Brian Keith Johnston is a notable inventor based in Schnecksville, PA (US). He has made significant contributions to the field of natural gas liquefaction, holding a total of 3 patents. His work focuses on improving the efficiency and effectiveness of natural gas processing systems.

Latest Patents

One of Johnston's latest patents is titled "Refrigerant recovery in natural gas liquefaction processes." This patent describes a method for removing refrigerant from a natural gas liquefaction system. In this method, vaporized mixed refrigerant is withdrawn from the closed-loop refrigeration circuit and introduced into a distillation column. This process separates the refrigerant into an overhead vapor enriched in methane and a bottoms liquid enriched in heavier components. The overhead vapor is then withdrawn to form a methane-enriched stream, while the bottoms liquid is reintroduced into the refrigeration circuit. Additionally, Johnston has developed methods for altering the production rate in natural gas liquefaction systems utilizing this refrigerant recovery method.

Another significant patent is the "Method of operating natural gas liquefaction facility." This patent outlines a method for controlling the flow of natural gas and refrigerant in the main heat exchanger of a liquefaction facility. The method allows for automated control of the flow rate of a natural gas feed stream based on various process variables and set points. The flow rate of refrigerant streams is controlled independently, enhancing the overall efficiency of the system.

Career Highlights

Brian Keith Johnston is currently employed at Air Products and Chemicals, Inc., where he continues to innovate in the field of natural gas liquefaction. His expertise and contributions have positioned him as a key figure in advancing technologies related to natural gas processing.

Collaborations

Johnston has collaborated with notable coworkers, including Mark Julian Roberts and Fei Chen. Their combined efforts contribute to the ongoing development of innovative solutions in the industry.

Conclusion

Brian Keith Johnston's work in natural gas liquefaction showcases his commitment to innovation and efficiency. His patents reflect a deep understanding of the complexities involved in natural gas processing, making him a valuable asset in the field.