阅读说明：本技术 一种废矿物油油渣加工工艺 (Processing technology of waste mineral oil dregs ) 是由 肖绍武 张钜铖 宗敏芳 梁满坚 周伟豪 王子琦 于 2019-08-20 设计创作，主要内容包括：本发明公开了一种废矿物油油渣加工工艺,包括如下步骤：将废矿物油油渣放入反应釜中,并加入有机溶剂,充分搅拌；然后的混合液过滤,并放置到烘干机上烘干,的到干燥的油渣；然后将干燥的油渣放入粉碎机内；然后将油渣粉末吹过两层设有电磁铁的通道,用于出去油渣内的金属杂质；然后将除去金属杂质后油脂粉末与苛性碱按照重量比5:1的比例,放到搅拌机中充分混合；然后将混合粉末置于密闭的加热炉中加热,最后将反应物经过稀酸溶液浸泡,然后多次水洗,并烘干,便得到沥青；本发明利用有机溶剂出去油渣中多余的油,通过电磁铁除去油渣中,并通过与苛性碱反应除去油渣中的硫,从而得到较为纯净的沥青,方便后续利用。(The invention discloses a processing technology of waste mineral oil residues, which comprises the following steps: putting the waste mineral oil residues into a reaction kettle, adding an organic solvent, and fully stirring; then the mixed liquid is filtered and placed on a dryer to be dried to obtain dry oil residue; then putting the dried oil residue into a crusher; then, the oil residue powder is blown through two layers of channels provided with electromagnets and used for removing metal impurities in the oil residue; then, putting the grease powder after the metal impurities are removed and caustic alkali into a stirrer according to the weight ratio of 5:1 for fully mixing; then placing the mixed powder in a closed heating furnace for heating, finally soaking the reactant in a dilute acid solution, then washing with water for multiple times, and drying to obtain asphalt; the invention utilizes the organic solvent to remove the redundant oil in the oil residue, removes the oil residue through the electromagnet, and removes the sulfur in the oil residue through the reaction with the caustic alkali, thereby obtaining the purer asphalt and facilitating the subsequent utilization.)

1. The processing technology of the waste mineral oil dregs is characterized by comprising the following steps:

The method comprises the following steps: putting the waste mineral oil residues into a reaction kettle, adding an organic solvent, fully stirring, heating to 50-60 ℃, stirring for 15-20 minutes, and stopping heating;

Step two: filtering the mixed liquid in the step one, and placing the filtered mixed liquid on a dryer for drying to obtain dried oil residue;

Step three: putting the dried oil residue into a crusher, sieving with a 400-mesh screen, and brushing the selected oil residue powder with the particle diameter of less than 0.0374 mm;

Step four: blowing the oil residue powder through two layers of channels provided with electromagnets for removing metal impurities in the oil residue;

Step five: putting the grease powder after metal impurities are removed and caustic alkali into a stirrer according to the weight ratio of 5:1, and fully mixing for later use;

step six: heating the mixed powder in the fifth step in a sealed heating furnace, filling inert gas with a protective effect in the heating furnace, heating to a certain temperature to melt caustic alkali, and performing chemical reaction with sulfur-containing compounds in the oil residue to convert sulfur in the oil residue into soluble alkali metal sulfide or sulfate;

Step seven: and soaking the reactants in the sixth step in a dilute acid solution, washing for multiple times, detecting the pH value, stopping washing when the pH value is close to 7, and drying to obtain the asphalt.

2. The process of claim 1, wherein the organic solvent in the first step is one or more selected from methyl ether, dipropylene glycol monobutyl ether, ethyl ether, propylene glycol monobutyl ether, ethylene glycol, propyl ether, ethylene glycol mono-tertiary-butyl ether, ethylene glycol monobutyl ether, isopropyl ether, diethylene glycol butyl ether, ethyl propyl ether, propylene glycol mono-tertiary-butyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, and anisole.

3. a method of producing the used mineral oil residue according to any one of claims 1 to 2, wherein the caustic alkali is a mixture of sodium hydroxide and potassium hydroxide in a weight ratio of 1: 1.

4. The method for preparing the waste mineral oil residue processing technology according to any one of claims 1 to 2, wherein the inert gas in the sixth step is: helium, neon, argon, krypton and nitrogen.

5. A method for preparing the waste mineral oil residue processing technology according to any one of claims 1 to 2, wherein the diluted acid solution in the seventh step is 10% diluted sulfuric acid.

Technical Field

The invention relates to the technical field of mineral oil, in particular to a processing technology of waste mineral oil residues.

Background

The petroleum mainly comprises the following components: oily (which is its main component), colloidal (a viscous semi-solid substance), asphaltene (a dark brown or black brittle solid substance), carbonaceous. Petroleum is a combustible oily liquid which is mainly mixed with hydrocarbon and has special odor and color. Strictly speaking, petroleum contains hydrocarbons composed of hydrogen and carbon as main components. Chemicals constituting petroleum are decomposed by distillation energy. Crude oil is a processed product, and includes kerosene, benzene, gasoline, paraffin, asphalt, and the like.

The oil formation mechanism of petroleum has two theories of biological deposition and oil change and petrochemical oil, the former is widely accepted, and the petroleum is formed by the long evolution of organisms in ancient oceans or lakes, belongs to biological deposition and oil change and cannot be regenerated; the latter considers that oil is produced from the carbon in the earth's crust itself, is biologically unrelated and is renewable. Petroleum is used mainly as fuel and gasoline, and also as a raw material for many chemical industry products such as solutions, fertilizers, pesticides, and plastics.

with the rapid development of the petroleum industry, a plurality of large oil refineries are successively built in China. In a refinery, petroleum goes through a plurality of processing steps to extract commercial oil, and petroleum oil residue (generally called asphalt) is formed, but the petroleum oil residue contains sulfur, metals and other impurities, so that the petroleum oil residue cannot be used, and therefore the petroleum oil residue needs to be purified and subjected to sulfur removal treatment.

Disclosure of Invention

The invention aims to provide a processing technology of waste mineral oil residues, which aims to solve the problems in the background technology.

in order to achieve the purpose, the invention provides the following technical scheme:

A processing technology of waste mineral oil residues comprises the following steps:

The method comprises the following steps: and (2) putting the waste mineral oil residues into a reaction kettle, adding an organic solvent, fully stirring, heating to 50-60 ℃, stirring for 15-20 minutes, and turning off heating.

Step two: and (4) filtering the mixed liquid in the step one, and placing the filtered mixed liquid on a dryer for drying to obtain dried oil residue.

Step three: and (3) putting the dried oil residue into a crusher, sieving the crushed oil residue with a 400-mesh screen, and brushing the selected oil residue powder with the particle diameter of less than 0.0374 mm.

Step four: and blowing the oil residue powder through two layers of channels provided with electromagnets for removing metal impurities in the oil residue.

Step five: and (3) fully mixing the grease powder after the metal impurities are removed and caustic alkali in a weight ratio of 5:1 in a stirrer for later use.

Step six: and (4) heating the mixed powder in the fifth step in a sealed heating furnace, filling inert gas with a protective effect in the heating furnace, heating to a certain temperature to melt caustic alkali, and reacting with sulfur-containing compounds in the oil residue (to perform a chemical reaction to convert sulfur in the oil residue into soluble alkali metal sulfide or sulfate.

Step seven: and soaking the reactants in the sixth step in a dilute acid solution, washing for multiple times, detecting the pH value, stopping washing when the pH value is close to 7, and drying to obtain the asphalt.

as a further scheme of the invention: the organic solvent in the step one is one or a mixture of more than one of methyl ether, dipropylene glycol monobutyl ether, ethyl ether, propylene glycol monobutyl ether, ethylene glycol diether, propyl ether, ethylene glycol mono-tertiary-butyl ether, ethylene glycol monobutyl ether, isopropyl ether, diethylene glycol butyl ether, ethyl propyl ether, propylene glycol mono-tertiary-butyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether and anisole.

the caustic alkali is formed by mixing sodium hydroxide and potassium hydroxide according to the weight ratio of 1: 1.

The inert gas in the sixth step is as follows: helium, neon, argon, krypton and nitrogen.

The dilute acid solution in the seventh step is 10 percent dilute sulfuric acid.

As a still further scheme of the invention:

Compared with the prior art, the invention has the beneficial effects that: the invention utilizes the organic solvent to remove the redundant oil in the oil residue, removes the oil residue through the electromagnet, and removes the sulfur in the oil residue through the reaction with the caustic alkali, thereby obtaining the purer asphalt and facilitating the subsequent utilization.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to specific embodiments.