Device and method for solving aggregation jam of compressor segment of styrene off-gas

A tail gas compressor and compressor technology, applied in chemical instruments and methods, organic chemistry, hydrocarbons, etc., can solve problems such as high cost, unsatisfactory effect, and large impact on production load, and achieve the goal of reducing energy consumption of the device Effect

Pending Publication Date: 2018-02-23
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
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Problems solved by technology

[0004] However, the former only uses ethylbenzene to wash and dissolve styrene and polymers, which is greatly affected by the production load of the device, and the effect is not ideal in actual operation; the latter has the problems of high cost and large pollution

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  • Device and method for solving aggregation jam of compressor segment of styrene off-gas
  • Device and method for solving aggregation jam of compressor segment of styrene off-gas
  • Device and method for solving aggregation jam of compressor segment of styrene off-gas

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Embodiment Construction

[0033] The present invention proposes a device and method for solving the polymerization blockage of the styrene tail gas compressor section. In order to make the advantages and technical solutions of the present invention clearer, the present invention will be described in detail below in conjunction with specific examples.

[0034] 1, 2, 3, 4 ... 9 in the pipeline A1, pipeline B2, pipeline C3, pipeline D4 ... pipeline I9 that appear in the following embodiments are representative reference signs (attached figure 2 reference signs in ).

[0035] Such as figure 2 Shown, the present invention is a kind of device that solves the polymer blockage of styrene tail gas compressor section, and it comprises aftercooler I, compressor inlet cooler II, compressor suction tank III, tail gas compressor IV, liquid separation tank V and tail gas Pipeline B2 is installed at the bottom of the tube side of cooler VI and aftercooler I, and pipeline B2 is connected to oil-water separator 10, a...

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Abstract

The invention discloses a device and method for solving aggregation jam of a compressor segment of styrene off-gas and belongs to the technical field of chemical engineering. The technical problem issolved that aggregation jam easily happens at the compressor segment of the styrene off-gas in the prior art. The device comprises an after-cooler, a compressor inlet cooler, a compressor suction pot,an off-gas compressor, a liquid separation tank and an off-gas cooler. The styrene off-gas cooled by the after-cooler enters the compressor inlet cooler and is subjected to copious cooling, cooled condensate enters an oil-water separator, and the styrene off-gas after copious cooling enters the compressor suction tank; the condensate which is carried by the off-gas is further separated, the styrene off-gas after fluid exhaustion enters the off-gas compressor, and the compressed styrene off-gas enters the separation tank; the styrene off-gas after fluid separation enters the off-gas cooler, and the fluid in the liquid separation tank enters the oil-water separator. It can be guaranteed that the device can run for a long period, and the purpose is achieved that the influence of aggregationof the compressor segment to long-period running of the device is avoided under the condition that energy consumption of the device is lowered.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a device and method capable of effectively and at low cost solving the polymerization blockage of a styrene tail gas compressor section. Background technique [0002] Styrene is an important organic chemical raw material. At present, most of the domestic production of styrene is through the process of dehydrogenation of ethylbenzene to styrene. As an extremely active monomer, styrene is very easy to polymerize, especially at high temperatures. In the process of ethylbenzene dehydrogenation to styrene, the dehydrogenation tail gas generated by the dehydrogenation reaction contains a small amount of easily polymerizable olefins such as styrene and α-methylstyrene, and its temperature will increase significantly after being compressed by the tail gas compressor , it is very easy to form polymers at the inlet of the tail gas compressor, the tail gas compressor and its outl...

Claims

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Application Information

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IPC IPC(8): C07C15/46C07C5/327
CPCC07C5/327C07C15/46
Inventor 竺家培徐相伟林昊健崔永刚牛迪祁洪胜
Owner CHINA PETROLEUM & CHEM CORP
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