Oil inlet distribution pipe for wood tar ebullating bed hydrogenation reactor

A technology of oil inlet distribution pipe and hydrogenation reactor, which is applied in the fields of refining tar by chemical method, hydrocarbon oil cracking, petroleum industry, etc. It can solve the problems of wood tar coking and other problems, and achieve the effect of preventing heating and coking and avoiding polymerization and coking

Active Publication Date: 2018-07-31
SINOPEC LUOYANG PETROCHEM ENG CORP +1
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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 pipe for wood tar ebullating bed hydrogenation reactor
  • Oil inlet distribution pipe for wood tar ebullating bed hydrogenation reactor

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Embodiment Construction

[0013] see figure 1 , the first oil inlet distribution pipe (abbreviated as oil inlet distribution pipe) for wood tar ebullated bed hydrogenation reactor of the present invention, the outlet is located above the reactor distribution plate 51. The reactor distribution plate 51 is installed in the lower part of the wood tar ebullated bed hydrogenation reactor (abbreviated as the reactor) 5, and consists of a distribution plate and a plurality of bubble-cap distributors. Reactor 5 is also provided with hydrogen and circulating oil pipe 53, pre-distributor 52, catalyst discharge pipe 54, catalyst feed pipe, gas outlet pipe, liquid outlet pipe, etc. (figure omitted).

[0014] The oil inlet distribution pipe is arranged horizontally, including the oil inlet pipe 1 and the cooling medium sleeve arranged outside it. The oil inlet pipe 1 is composed of a round pipe section 11 and a tapered pipe section 12 of the oil inlet pipe. The cooling medium casing is a protection oil casing 2, ...

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Abstract

The invention discloses an oil inlet distribution pipe for a wood tar fluidized bed hydrogenation reactor. The oil inlet distribution pipe includes an oil inlet pipe (1) and a protective oil casing (2) arranged outside it, and a protective oil channel (3) is formed between the two. The oil inlet pipe is made up of the oil inlet pipe round pipe section (11) and the tapered pipe section (12), and the protection oil casing is made up of the protection oil casing round pipe section (21) and the Venturi pipe section (22). The outlet of the Venturi pipe section is used as the outlet of the oil inlet distribution pipe, and the tapered pipe section extends into the Venturi pipe section. The first oil inlet distribution pipe of the present invention is arranged horizontally, and the outlet of the Venturi pipe section is located in the middle area of ​​the reactor. The oil inlet pipe of the second oil inlet distribution pipe is divided into a horizontal pipe section and a vertical pipe section, and the tapered pipe section is located on the vertical pipe section; the protective oil casing is divided into a horizontal pipe section and a vertical pipe section, and the Venturi pipe section is located on the vertical pipe section; The vertical pipe section is located in the central region of the reactor. The invention is used for transporting 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 Patents(China)
IPC IPC(8): B01J4/00B01J8/22C10C1/20C10G47/00
Inventor 陈崇刚李立权陈强蔡连波盛维武赵晓青李小婷
Owner SINOPEC LUOYANG PETROCHEM ENG CORP
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