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Oil inlet distribution tube for wood tar fluidized bed hydrogenation reactor

A technology of oil inlet distribution pipe and hydrogenation reactor, which is applied in the fields of refining tar through chemical methods, chemical instruments and methods, chemical/physical processes, etc., which can solve the problems of wood tar coking and other problems, so as to prevent heating and coking and avoid polymerization Good effect of coking and cooling

Active Publication Date: 2016-08-24
LUOYANG PETROCHEMICAL ENG CORP SINOPEC +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide an oil inlet distribution pipe for wood tar fluidized bed hydrogenation reactor, to solve the problem that the existing oil inlet distribution pipe is easy to cause coking of wood tar

Method used

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  • Oil inlet distribution tube for wood tar fluidized bed hydrogenation reactor
  • Oil inlet distribution tube for wood tar fluidized bed hydrogenation reactor

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Embodiment Construction

[0011] see figure 1 , the present invention is used for the oil inlet distribution pipe 9 (abbreviated as the oil inlet distribution pipe) of the wood tar fluidized bed hydrogenation reactor, and the outlet is located above the reactor distribution plate 11. The reactor distribution plate 11 is installed in the lower part of the wood tar ebullating bed hydrogenation reactor (abbreviated as the reactor) 10, and consists of a distribution plate and a plurality of bubble-cap distributors. The reactor 10 is also provided with a hydrogen and circulating oil pipe 12, a pre-distributor 13, a catalyst discharge pipe 14, a catalyst feed pipe, a gas outlet pipe, a liquid outlet pipe, etc. (not shown).

[0012] The oil inlet distribution pipe 9 includes the oil inlet pipe 1 and the cooling water jacket arranged outside it. The oil inlet distribution pipe 9 is made up of a horizontal pipe section and a vertical pipe section. The horizontal pipe section passes through the side wall of the...

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Abstract

The invention discloses an oil inlet distribution tube for a wood tar fluidized bed hydrogenation reactor, and the problem that for an existing oil inlet distribution tube, wood tar is prone to coking is solved. The oil inlet distribution tube (9) comprises an oil inlet tube (1) and a cooling water sleeve arranged outside the oil inlet tube (1) and is composed of a horizontal tube section and a vertical tube section, and the vertical tube section is located in the central area of a wood tar fluidized bed hydrogenation reactor (10). The cooling water sleeve comprises an inner sleeve (2) and an outer sleeve (3); a first cooling water channel (6) is formed between the inner sleeve and the oil inlet tube, and a second cooling water channel (7) is formed between the inner sleeve and the outer sleeve; a flared tube (8) is arranged on the portion, between the bottom end of the oil inlet tube and the bottom end of the outer sleeve, at the vertical tube section of the oil inlet distribution tube and serves as an outlet of the oil inlet distribution tube; the first cooling water channel is communicated with the bottom of the second cooling water channel. The oil inlet distribution tube for the wood tar fluidized bed hydrogenation reactor is used for conveying the wood tar into the fluidized bed hydrogenation reactor.

Description

technical field [0001] The invention relates to components of a wood tar ebullating bed hydrogenation reactor, in particular to an oil inlet distribution pipe for the wood tar ebullating bed hydrogenation reactor. Background technique [0002] Biomass pyrolysis technology can convert biomass (such as woody raw materials, agricultural waste) into liquid biomass tar (wood tar), and the yield can reach 65w%-70w% (w% means weight percentage). Wood tar has a complex composition, high moisture content, high corrosiveness, low calorific value, and is unstable, easy to polycondensate, and difficult to miscible with petroleum products (such as gasoline, diesel, etc.). Since the end of the 1990s, countries around the world have successively carried out technical research on refining fuel oil from wood tar, among which wood tar ebullating bed hydrocracking is considered to be one of the technologies with the most development potential. Because wood tar will undergo severe coking under...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/22C10C1/20
Inventor 李立权陈崇刚蔡连波陈强赵晓青盛维武李小婷
Owner LUOYANG PETROCHEMICAL ENG CORP SINOPEC
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