Rolf Marrett is a notable inventor based in Castrop-Rauxel, Germany. He has made significant contributions to the field of chemical engineering, particularly in the area of liquid separation technologies. With a total of 5 patents to his name, Marrett's work has had a considerable impact on industrial processes.

Latest Patents

One of Marrett's latest patents is a method for the mass separation of a liquid mixture through fractional crystallization. This invention relates to a method and an apparatus designed for the mass separation of a liquid mixture, where the crystal layer is crystallized on the indirectly cooled wall of the crystallization zone. The process involves mass transfer occurring in thin boundary layers produced by rising gas bubbles that glide closely along the heat-dissipating surfaces. This method is particularly effective for products that form only a soft crystal layer with a rough surface. It is executed in a vertical pipe heat exchanger, with gas-inlet pipes extending into the lower part of the pipes, which are secured with centering pins. The maximum inside diameter of the pipes is determined by the optimum thickness of the crystal layer and the concentration of the crystallizable component in the feedstock.

Another significant patent involves a process for coking high-boiling aromatic hydrocarbon mixtures to form high-grade carbon products. This process can be continuous or discontinuous and is designed to produce carbon products with a narrow range of physical and chemical properties. High-boiling aromatic hydrocarbon mixtures are coked in thin layers according to a defined temperature/time program. The relationship between layer thickness and optimum coking time is established through preliminary experiments, ensuring efficient processing.

Career Highlights

Throughout his career, Rolf Marrett has worked with prominent companies, including Rutgerswerke Aktiengesellschaft and Ruetgerswerke Aktiengesellschaft. His experience in these organizations has allowed him to refine his expertise in chemical processes and innovations.

Collaborations

Marrett has collaborated with notable colleagues such as Herbert Glaser and Maximilian Zander. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

Rolf Marrett's innovative work in liquid separation technologies and coking processes has established him as a significant figure in the field of chemical engineering. His contributions continue to influence industrial practices and enhance the efficiency

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