Reactor combustion control method and reactor

Abstract

A reactor combustion control method using a high temperature air combustion technology capable of reducing a temperature difference in a reactor without producing cracking and caulking in reaction tubes and the reactor controlled by using the method, the reactor wherein second burners ( 8 ) are disposed in a space formed between two or more reaction tubes ( 7 ) adjacent to each other so as to inject fuel in the extending direction of the reaction tubes ( 7 ), and partial combustion air feeding devices ( 10 ) and ( 11 ) for the second burners discharging exhaust gas in a combustion chamber ( 2 ) to the outside of the reactor through a permeable heat reservoir and feeding combustion air heated to a high temperature by the latent heat of the heat reservoir to the second burners ( 8 ) are installed; the method comprising the steps of raising the temperature in the reactor by the combustion of only the first burners ( 3 a) to ( 6 a) until the inside of a reactor body ( 1 ) is brought into a high temperature air combustion state, starting the combustion of the second burners ( 8 ) after the inside of the reactor body ( 1 ) is brought into the high temperature air combustion state, and decreasing the amount of combustion of the plurality of first burners ( 3 a) to ( 6 a) according an increase in combustion amount of the second burners ( 8 ) whereby a necessary combustion state can be provided.

Description

technical field [0001] The invention relates to a reaction furnace using high-temperature air combustion technology. Background technique [0002] Japanese Patent Application Laid-Open No. 11-179191 (Japanese Patent Application No. 9-357263) discloses a technique for improving the reaction efficiency of several reaction tubes. This technology uses a high-temperature air combustion type regenerative combustion device to increase the temperature in the furnace. In the furnace, several reaction tube groups composed of several reaction tubes are arranged side by side side by side. [0003] In addition, JP-A-2001-152166 (Japanese Patent Application No. Hei 11-343624) discloses a technology related to a reaction furnace using a high-temperature air combustion technology. The high-temperature air combustion technology mentioned here refers to the technology of preheating the combustion air to a high temperature above 800°C, blowing the combustion air into the combustion chamber at...

AI Technical Summary

Problems solved by technology

For this reason, the heating of each reaction tube lacks uniformity, and there arises a problem that the amount of heat received (heat transfer efficiency) of the reaction tube as a whole decreases.

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