Ethene cracking furnace of one-way radiant section furnace tube and application in chemical field
A technology of ethylene cracking furnace and radiant section, which is applied in the direction of cracking, hydrocarbon cracking to hydrocarbon, non-catalytic thermal cracking, etc., and can solve the problem of increasing pressure of cracking furnace, affecting the uniform distribution of flow rate, and the decline of key indicators such as olefin yield of processing capacity, etc. problems, to achieve the effect of increasing yield, improving overall performance, and good industrial application prospects
Active Publication Date: 2014-05-14
CHINA PETROLEUM & CHEM CORP +1
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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
Method used
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Embodiment 1
[0102] Take an ethylene cracking furnace with an annual output of 100,000 tons as an example. The ethylene cracking furnace is improved according to a preferred embodiment of the present invention. Under the same process conditions, use the ethylene cracking furnace according to the prior art (the heat exchange tube of the radiant section is not provided with twisted sheets) and the ethylene cracking furnace according to the present invention to carry out comparative experiments, and the process data comparison of the experimental results is as shown in Table 1 As can be seen from Table 1, the pressure drop at the outlet of the radiant section decreases after the styrene heating furnace according to the present invention is used, and the pressure drop at the furnace tube of the radiant section decreases.
[0103]
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The invention discloses an ethene cracking furnace of a one-way radiant section furnace tube, the ethene cracking furnace comprises a radiant section, the radiant section has 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 holes are provided on the distortion sheet. The invention also provides an application of the ethene cracking furnace of the one-way radiant section furnace tube in the chemical field. According to the above technical scheme, the reinforcement heat transfer element is arranged on the heat exchange tube of the radiant section of the one-way radiant section furnace tube ethene cracking furnace, good heat transfer effect is realized, the coking rate of the ethene cracking furnace is reduced, 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 yield of products alkene is increased, and the 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 a single-pass radiation section furnace tube 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 the cracking furnace for producing ethylene, the important direction of its development is high temperature, short residence and low hydrocarbon partial pressure, and the cracking furnace has been pursuing large-scale. The large-...
Claims
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Inventor 张利军王国清张永刚周先锋刘俊杰杜志国张兆斌周丛
Owner CHINA PETROLEUM & CHEM CORP
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