Flexible vaseline hydrogenation process

A technology of vaseline and craftsmanship, which is applied in the petroleum industry, processing hydrocarbon oil, etc., and can solve the problems of poor operational flexibility and poor flexibility

CN109988597BActive Publication Date: 2021-05-04CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-05-04

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Abstract

The invention discloses a flexible vaseline hydrogenation process. Vaseline raw material enters the hydrorefining reactor, and the material after passing through the upper hydrorefining catalyst bed is divided into two streams; one stream of material is separated by a gas-liquid separator installed in the middle of the bed, and the liquid obtained is drawn out of the refining reactor and mixed with hydrogen Then enter the hydroisomerization reactor for isomerization reaction; the other material is the gas in the reactor and the remaining liquid mixture flow after extraction, and the mixture flow continues to flow down through the lower hydrotreating catalyst bed; the obtained hydrogenation The refined reaction material and the hydroisomerization reaction material are subjected to gas-liquid separation and fractional distillation respectively to obtain vaseline products of different specifications. The invention provides for the first time a hydrogenation process for simultaneously producing two or more vaseline products of different specifications on a set of hydrogenation process equipment, which can make full use of the heat carried by part of the hydrogenation refining material to realize the hydrogenation refining reactor and hydrogenation process. Coupling operation of hydroisomerization reactors.
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Description

technical field

[0001] The invention belongs to the field of petroleum refining, and in particular relates to a petroleum jelly hydrogenation process for flexibly producing high-quality petroleum jelly products. Background technique

[0002] Vaseline is an ointment-like petroleum product with certain characteristics, and it is an important raw material for the production of pharmaceuticals, daily chemicals and other fine chemicals. Vaseline raw materials are mainly blended with residual oil wax paste and lubricating oil. The commonly used refining methods of Vaseline include acid-clay refining, aluminum trichloride refining and hydrogenation refining. Due to the low yield of the first two refining methods, a large amount of waste that is difficult to handle is generated, which leads to high production costs and serious environmental pollution, and has been gradually replaced by the hydrofining method.

[0003] Due to the high content of sulfur, nitrogen compounds and aromat...

Examples

Embodiment 1-3

[0035] Protective agents FZC-100, FZC-105 and FZC106 are hydrogenation protective agents developed and produced by Sinopec Fushun Petrochemical Research Institute; catalyst FV-10 is developed and produced by Sinopec Fushun Petrochemical Research Institute Hydrofining catalyst; Catalyst FC-20 is a hydroisomerization catalyst developed and produced by Fushun Petrochemical Research Institute of China Petrochemical Corporation, which contains β-type molecular sieve.

[0036] Table 1 Main properties of petroleum jelly raw materials

[0037]

[0038] Table 2 process conditions

[0039]