THERMOLYTIC FRAGMENTATION OF SUGAR USING RESISTIVE HEATING Russian patent published in 2023 - IPC C07C27/00 C07C29/14 C07C45/60 B01J8/24 

FIELD: reactor systems.

SUBSTANCE: invention relates to a reactor system for the thermolytic fragmentation of sugar to C₁-C₃ oxygenates, to a method for carrying out the thermolytic fragmentation of sugar to C₁-C₃ oxygenates, and also to a method for producing C₁-C₃-hydroxy compounds from sugar. The proposed reactor system includes: a fragmentation reactor containing heat-carrying particles for supplying heat for the thermolytic fragmentation of sugar to C₁-C₃ oxygenates. This reactor is equipped with a fragmentation particle inlet for introducing heated heat transfer particles into the fragmentation reactor, a fragmentation particle outlet for collecting spent heat transfer particles from the fragmentation reactor, a feedstock inlet for introducing sugar into the fragmentation reactor, an ascending section of the fragmentation reactor including a zone fragmentation and enabling thermolytic sugar fragmentation, and a product outlet for recovering C₁-C₃ oxygenates; a heater, said heater including: a first gas inlet in the heater, a particle inlet in the heater, a particle outlet in the heater, a gas outlet in the heater, a resistive heating system, a first flow device for transporting spent heat-carrying particles from a fragmentation particle outlet to a particle inlet in the preheater; a second flow device for transporting the heated heat-carrying particles from the particle outlet in the preheater to the fragmentation particle inlet. At the same time, the resistive heating system comprises a heating structure made of an electrically conductive material, and said heating structure is located in the heating zone inside the heater to transfer heat to heat-carrying particles inside the heater.

EFFECT: development of high-performance and more energy-efficient reactor systems and methods for producing environmentally friendly C₁-C₃ oxygenates from sugars, which are suitable for large-scale production.

41 cl, 5 dwg, 4 ex