Two-range radiant section boiler tube ethene cracking furnace and application of ethene cracking furnace in chemical field

Abstract

The invention discloses a two-range radiant section boiler tube ethene cracking furnace, which comprises a radiant section, the radiant section comprises a heat exchange tube (10), wherein, a reinforcement heat transfer element is arranged in the heat exchange tube (10), the reinforcement heat transfer element comprises a distortion sheet, and the distortion sheet comprises apertures. The invention also provides an application of the ethene cracking furnace in a chemical field. According to the technical scheme, the reinforcement heat transfer element is arranged in the heat exchange tube of the radiant section of the two-range radiant section boiler tube ethene cracking furnace, good heat transfer effect is realized, the coking rate of the ethene cracking furnace is reduced, the cleaning period of the furnace tube is prolonged, the decoking operation is convenient, the integral performance of the ethene cracking furnace is increased, pressure drop in the furnace tube is effectively reduced, the products alkene yield is increased, and the two-range radiant section boiler tube ethene cracking furnace has good industrial application and prospect.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to an ethylene cracking furnace with two-pass radiation section furnace tubes and its application in the field of petrochemical industry. Background technique [0002] Petroleum hydrocarbon cracking to ethylene is a high-temperature and strong endothermic process, so it is not only necessary to heat the reaction material to a relatively high temperature to initiate the cracking reaction, but also to continuously provide sufficient energy to achieve the required conversion during the reaction process Rate. [0003] At present, the industrial production of ethylene mainly adopts the method of pyrolysis of high-temperature steam in a tubular reactor. For cracking furnaces producing ethylene, the structure of radiant furnace tubes is closely related to the selectivity of cracking products, the increase of olefin yield of cracking products and the adaptability to raw materials, and is t...

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Problems solved by technology

However, the technical solution of adding twisted sheets will increase the pressure of the cracking furnace, affecting the uniform distribution of flow, resulting in a decrease in key indicators such as processing capacity and olefin yield

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