CN1093737A

CN1093737A - With alkylbenzene byproduct hydrogenation of tar manufacture white oil technology

Info

Publication number: CN1093737A
Application number: CN 93111067
Authority: CN
Inventors: 王非; 何博力
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-04-16
Filing date: 1993-04-16
Publication date: 1994-10-19

Abstract

With alkylbenzene byproduct hydrogenation of tar manufacture white oil technology, be a kind of to tar realization deep-processing method, its principal character is tar is carried out delivering in the reactor after the pre-treatment, pressurize with hydrogenation, under the nickel catalyst condition, react, the gained liquid product carries out high pressure again to be separated with low hydraulic fluid gas, obtains white oil or lubricating oil goods after aftertreatment.This operational path resulting product meets national standard, has changed at present and alkylbenzene tar has only been made burning fuel both at home and abroad, and can not reprocess the present situation of utilization.

Description

With alkylbenzene byproduct hydrogenation of tar manufacture white oil technology

The invention belongs to the refining of petroleum processing technique field, is a kind of technology of tar being produced white oil with the hydrogenation pressure method.

In producing alkylbenzene product process, produce a kind of byproduct tar.This tar is owing to degree of depth black, mechanical impurity are many, so reworking is relatively more difficult.Though taked absorption decolouring and process for sulfonation to carry out refinement treatment in the past, but because of the refining losses amount big, weak effect and do not reach practical function, so a kind of practicable operational path is not arranged up till now as yet, thereby all tar is not carried out deep processing both at home and abroad, all make general fuel it is incinerated, make tar lose further available value.

The objective of the invention is to overcome does not have feasible complete processing to tar at present, and a kind of technology with hydrogenation pressure method manufacture white oil is provided, and achieves the further deep processing of tar.

Design philosophy of the present invention is: the tar material is carried out pre-treatment, and be passed in the reactor, with the hydrogenation pressurization, be equipped with rational material and mix with hydrogen, use nickel catalyst or aftertreatment to realize.

Accompanying drawing is the hydrogenation of tar process flow diagram.

This technology can be divided into five operation parts: select materials-pre-treatment-hydrogenation-aftertreatment-finished product.

The operation of selecting materials: used tar material should meet following parameter:

Proportion is 0.863, and mechanical impurity is 0.008 heavy %, and oxidation postprecipitation thing is 0.017%, and color is a degree of depth black, opaque, and viscosity is 32 centistokes (40 ℃), and flash-point is 185 ℃ (openings).

Pretreatment procedure: make tar remove impurity and moisture content, available filter paper is removed impurity, will be suspended in water content in oil then and remove, make material moisture＜0.3%.

Hydrogenation pressurization operation: 1 test tank among the material input figure after will handling, be transported to reactor 6,7 with pump 2, simultaneously, and by hydrogen pressure machine 3, hydrogen-storage tank 4, deoxygenator 5 is carried hydrogen, and material and hydrogen ratio of mixture are 1Kg:1m ³, reactor 6,7 is series connection, and reactor 6,7 reaction pressures are 12-15MPa, and temperature of reaction is 150-240 ℃, and temperature is 240 ℃ in the enforcement, and pressure is 15MPa, and the nickel catalyst series can be used 0501 type; Reacting rear material is delivered to 8,9 two separators, carries out gas-liquid separation, and in two separators, 8 is high-pressure separator, and 9 is light pressure separator, isolates hydrogen and can be recycled, and product is delivered to aftertreatment.

Postprocessing working procedures: with 10% concentration alkali lye input pod 10, make its liquid for neutral, pH value is 7, and dehydration 11 gets product after filtration then.

To produce alkylbenzene byproduct tar is raw material, and nickel catalyst is used in the hydrogenation pressurization in device, to the tar deep processing, can make technical white oil and senior lubricant, and products obtained therefrom meets national standard (GB1791-84) fully.This technology provides feasibility technology for tar further utilizes.Burn thereby only change, can not reprocess the present situation of utilization, make its economic worth that magnanimous raising be arranged.This explained hereafter is stable, reliable, remarkable benefit.

Claims

With alkylbenzene byproduct hydrogenation of tar manufacture white oil technology, its operational path comprise select materials, pre-treatment, hydrogenation, aftertreatment, finished product operation, the feature of this technology is: in pretreatment procedure, material is moisture to be not more than 0.3%; In the hydrogenation operation, the ratio of mixture of material and hydrogen is 1Kg: 1m ³, two reactions 6,7 are series connection, and temperature is 150 ℃ in the reactor--and 240 ℃, reaction pressure is 12--15Mpa, uses nickel catalyst; After the reaction liquid is delivered to high-pressure separator 8 and light pressure separator 9 carries out gas-liquid separation; In postprocessing working procedures, it is neutral making liquid with 10% concentration alkaline purification.