Reaction heating method and device

Abstract

The invention discloses a heating method and device of hydrocarbon raw material catalytic reaction for manufacturing olefin or arene through alcohol raw materials. The heating device is characterized in that catalyst communicating pipes are arranged in the middles or on the lower portions of a reactor and a reaction heating device, hot catalyst in the reaction heating device is divided into an upper heat transmission zone and a lower heat transmission zone with the communication pipe as the boundary, gas distributors are arranged in the two heat transmission zones, the catalyst in the heat transmission zone in the reaction heating device below the communication pipe is fluidized by gas inlet from the lower gas distributor, the fluidization gas returns to the reactor through the communication pipe, the catalyst in the heat transmission zone above the communication pipe is fluidized by gas inlet from the upper gas distributor so as to achieve mixing and heat transfer of the catalyst in the upper heat transmission zone and the catalyst in the lower heat transmission zone, the fluidization gas is discharged out of the reaction heating device through an exhaust pipe at the top. Heating amount of the two heat transmission zones can be controlled independently through amount of the fluidization gas entering respective zone.

Description

technical field [0001] The invention belongs to the technical field of heat exchange equipment and is used for controlling the reaction temperature in an exothermic reaction process, in particular to a heat extraction method and equipment for controlling the temperature of alcohol raw materials and solid catalyst carbon deposition regeneration reaction process. Background technique [0002] Many gas-solid phase reactions are exothermic reactions, such as the catalytic polymerization of methanol to ethylene, propylene and aromatic hydrocarbons, the regeneration of catalysts for alcohol reactions, and the regeneration of catalytic cracking catalysts for petroleum hydrocarbons. In order to control the temperature of the reaction process, it is generally necessary to take away part of the heat released by the reaction. Two kinds of media are often used to transfer heat through the heat exchange surface to achieve heat extraction from the reactant stream and control the reaction ...

AI Technical Summary

Problems solved by technology

The catalyst circulation link in the prior art and the high-speed airflow link at the outlet of the fluidized medium distributor will cause the catalyst to be broken, increasing the operating cost and the dust emission to the ring diameter

Images