阅读说明：本技术 一种清洁的废油非硫酸白土精制剂 (Clean waste oil non-sulfuric acid carclazyte refining agent ) 是由 龙乾 刘润京 于 2020-05-22 设计创作，主要内容包括：本发明涉及石油产品回收再利用领域,特别是涉及一种清洁的废油非硫酸白土精制剂,其在克服传统硫酸/白土精制废油的不足的同时,简便高效、低能耗且低污染；包括脱色剂、稳定剂、渣处理剂和废气吸收剂,其中脱色剂为硫酸盐络合物,由以下重量比的成分组成：硫酸70-99％、氮肥1-30％；稳定剂为胺盐配合物,由以下重量比的成分组成：氮化物10-30％、硫代硫酸盐70-90％；渣处理剂为钙化物；废气吸收剂为pH值为8-14的碱水。(The invention relates to the field of petroleum product recycling, in particular to a clean waste oil non-sulfuric acid clay refining agent which overcomes the defects of the traditional sulfuric acid/clay refining waste oil, and is simple, convenient, efficient, low in energy consumption and low in pollution; the waste gas treatment device comprises a decolorizing agent, a stabilizing agent, a slag treating agent and a waste gas absorbent, wherein the decolorizing agent is a sulfate complex and consists of the following components in percentage by weight: 70-99% of sulfuric acid and 1-30% of nitrogen fertilizer; the stabilizer is an amine salt complex and consists of the following components in percentage by weight: 10-30% of nitride and 70-90% of thiosulfate; the slag treating agent is a calcification; the waste gas absorbent is alkaline water with the pH value of 8-14.)

1. The clean refining agent for the waste oil non-sulfuric acid clay is characterized by comprising a decolorizing agent, a stabilizing agent, a slag treating agent and a waste gas absorbent, wherein the decolorizing agent is a sulfate complex and consists of the following components in percentage by weight: 70-99% of sulfuric acid and 1-30% of nitrogen fertilizer; the stabilizer is an amine salt complex and consists of the following components in percentage by weight: 10-30% of nitride and 70-90% of thiosulfate; the slag treating agent is a calcification; the waste gas absorbent is alkaline water with the pH value of 8-14.

2. A clean waste oil non-sulfuric acid clay refining agent as in claim 1, wherein the nitrogen fertilizer in the decolorizing agent is one or more of carbonamide, ammonium carbonate, ammonium chloride.

3. The clean used oil non-sulfate clay refining agent as claimed in claim 2, wherein the nitride in the stabilizer is one or more of hydrazine hydrate, dimethylacetamide and diethylenetriamine; the thiosulfate is one or more of potassium thiosulfate, sodium thiosulfate and calcium thiosulfate.

4. The clean used oil non-sulfuric acid clay refining agent of claim 3, wherein the calcification in the slag treatment agent is one or more of calcium carbide, calcium oxide, and calcium carbonate.

5. The clean waste oil-free clay refining agent of claim 4, wherein the alkaline water in the waste gas treatment agent is one or more of lime water, soda water and caustic soda water.

6. A clean waste oil non-sulfuric acid clay refining agent according to claim 5, wherein the waste oil comprises gasoline, solvent oil, kerosene, diesel oil, reduced line oil or wax oil crude processed from used motor oil, used diesel oil, waste plastic, used tires or petroleum.

7. The clean used oil non-sulfuric acid clay refining agent of any one of claims 1-6, which is used by the method comprising: when preparing the decolorizing agent and the stabilizing agent, the materials are fed according to the formula sequence and proportion, and stirred and reacted for 60 minutes at normal temperature and normal pressure; when the waste oil is refined, firstly adding a decolorizing agent with the weight ratio of 3-5% into the waste oil, stirring for 30 minutes at normal temperature and normal pressure, naturally settling or mechanically separating and removing slag to obtain decolorized oil, then adding a stabilizing agent with the weight ratio of 0.05-0.3% into the decolorized oil, stirring for 20 minutes at normal temperature and normal pressure, settling or separating impurities to obtain a refined oil finished product; adding 10-30 wt% of slag treating agent into the settled or separated black slag, and stirring for 60 minutes at normal temperature and normal pressure to obtain solid fuel; and waste gas generated in the waste oil refining process is discharged after being treated by a waste gas absorbent in the absorption tank.

Technical Field

The invention relates to the field of petroleum product recycling, in particular to a clean waste oil non-sulfuric acid clay refining agent.

Background

According to incomplete statistics, the current waste engine oil generated by automobiles in China each year is 900-1200 ten thousand tons, the waste plastic is 3400 ten thousand tons, the waste tyre is 1200 ten thousand tons, the number does not include large-tonnage cargo ships in foreign ports, and the waste engine oil replaced by airplanes, trains, various mechanical equipment and the like is estimated to be 2500-3000 ten thousand tons each year in China, in addition, the quantity of waste diesel oil and non-standard diesel oil generated in China each year is equivalent to the production quantity of the waste engine oil, after the waste is subjected to recovery and thermal processing, the average oil yield is 50-70 percent, the national nervous petroleum resource can be saved by 6000 ten thousand tons each year, the economic benefit of more than 5000 RMB can be created each year, from the strategic significance is equivalent to the discovery of a large oil field in China, and the significance of the waste oil utilization is very great,

the problem of waste oil regeneration is always a key technology which troubles the refining field, and an efficient, economic and environment-friendly waste oil refining technology is always difficult to make substantial progress, the 'cleanness, rapidness, cheapness and high reaction selectivity of a refining agent' of waste oil regeneration are the goals pursued by people, so that an innovative 'green chemical' refining agent is required to replace sulfuric acid/carclazyte which is easy to pollute the environment, the 'green chemistry' is the forefront of the current international chemical research field and is the top science of the 21 st century, and the country lists the 'green chemistry' as a major basic field of key support,

the consumption of the lubricating oil in normal use is less, the lubricating oil needs to be replaced regularly, the lubricating oil is an important recycling object in petrochemical products, impurities in the waste lubricating oil comprise metal ions, mechanical impurities, heavy metals, colloidal substances, water, sulfur, nitrogen and other non-hydrocarbon compounds, even if the waste lubricating oil is distilled to produce the oil with reduced volume or diesel oil, the impurities cannot be completely removed, the traditional waste lubricating oil refining process usually adopts a sulfuric acid/white soil method, although 98% concentrated sulfuric acid is used for removing the non-hydrocarbon compound impurities in the oil, the impurities and the oil produce sulfonation reaction, so sulfonated oil and sulfonic acid residues are produced in refined oil and sulfuric acid residues, the waste acid residues produced by the pretreatment and the waste argil produced by the post-treatment can release sulfur dioxide to seriously pollute the air and cause serious pollution to soil and water resources, therefore, the recycling pollution control technical specification of HJ607-2011 mineral waste oil issued by the state is obviously prohibited, after the sulfuric acid/clay method is eliminated, some improved methods such as CN106381167B, CN102161930B and CN104745285B still utilize clay to adsorb impurities, the clay can adsorb partial oil while adsorbing the impurities, so that the yield is reduced, the waste amount is increased, and other methods such as CN101892073B, CN102766479B and CN105524702B need to be heated under high pressure or negative pressure, pressure-resistant equipment and higher heat are needed, so that the recovery cost is increased.

Disclosure of Invention

In order to solve the technical problems, the invention provides a clean waste oil non-sulfuric acid clay refining agent which is simple, convenient, efficient, low in energy consumption and low in pollution while overcoming the defects of the traditional sulfuric acid/clay refining waste oil.

The invention relates to a clean waste oil non-sulfuric acid carclazyte refining agent, which comprises a decolorant, a stabilizer, a slag treating agent and a waste gas absorbent, wherein the decolorant is a sulfate complex and consists of the following components in percentage by weight: 70-99% of sulfuric acid and 1-30% of nitrogen fertilizer; the stabilizer is an amine salt complex and consists of the following components in percentage by weight: 10-30% of nitride and 70-90% of thiosulfate; the slag treating agent is a calcification; the waste gas absorbent is alkaline water with the pH value of 8-14.

The invention relates to a clean waste oil non-sulfuric acid clay refining agent, wherein nitrogen fertilizer in a decoloring agent is one or more of carbamide, ammonium carbonate and ammonium chloride.

According to the clean waste oil non-sulfuric acid clay refining agent, nitrides in the stabilizer are one or more of hydrazine hydrate, dimethylacetamide and diethylenetriamine; the thiosulfate is one or more of potassium thiosulfate, sodium thiosulfate and calcium thiosulfate.

The invention relates to a clean waste oil non-sulfuric acid clay refining agent, wherein the calcification in the slag treating agent is one or more of calcium carbide, calcium oxide and calcium carbonate.

The invention relates to a clean waste oil non-sulfuric acid clay refining agent, wherein alkaline water in a waste gas treating agent is one or more of lime water, pure alkaline water and caustic soda water.

The invention relates to a clean waste oil non-sulfate clay refining agent, wherein the waste oil comprises gasoline, solvent naphtha, kerosene, diesel oil, reduced line oil or wax oil crude products processed from waste engine oil, waste diesel oil, waste plastic, waste tires or petroleum.

The invention relates to a clean waste oil non-sulfuric acid carclazyte refining agent, which comprises the following steps: when preparing the decolorizing agent and the stabilizing agent, the materials are fed according to the formula sequence and proportion, and stirred and reacted for 60 minutes at normal temperature and normal pressure; when the waste oil is refined, firstly adding a decolorizing agent with the weight ratio of 3-5% into the waste oil, stirring for 30 minutes at normal temperature and normal pressure, naturally settling or mechanically separating and removing slag to obtain decolorized oil, then adding a stabilizing agent with the weight ratio of 0.05-0.3% into the decolorized oil, stirring for 20 minutes at normal temperature and normal pressure, settling or separating impurities to obtain a refined oil finished product; adding 10-30 wt% of slag treating agent into the settled or separated black slag, and stirring for 60 minutes at normal temperature and normal pressure to obtain solid fuel; and waste gas generated in the waste oil refining process is discharged after being treated by a waste gas absorbent in the absorption tank.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention changes the traditional refining method of adding 98% concentrated sulfuric acid into waste oil directly by using a sulfuric acid/argil method, and only takes sulfuric acid as an original material to react with nitrogen fertilizer to generate a complex decolorizer of urea sulfate or ammonium sulfate salt, such as: sulfuric acid reacts with carbamide (urea) to produce urea sulfate, which has the reaction formula: h₂SO₄+CO(NH₂)₂＝CO(NH₂)₂·H₂SO₄(ii) a For another example, sulfuric acid reacts with ammonium carbonate to produce ammonium sulfate, which has the reaction formula: h₂SO₄+(NH₄)₂CO₃＝(NH₄)₂SO₄+CO₂+H₂O; like the reaction of sulfuric acid and ammonium chloride, the ammonium sulfate is also generated, and the urea sulfate or ammonium sulfate salt complex after the reaction is not sulfuric acid and is essentially different from 98% concentrated sulfuric acid, so that the invention belongs to a clean non-sulfuric acid method;

2. a decolorant urea sulfate or ammonium sulfate salt complex can passivate the sharpness of sulfuric acid on waste oil sulfonation, inhibit the generation of organic sulfonic acid residues, overcome the problem that the sulfonated acid residues formed by a large amount of sulfate radicals and organic matters in the acid residues are difficult to separate and process, and cause environmental pollution, while the black residues of the invention have no sulfonated acid residues, mainly because the sulfuric acid with the concentration of more than 98 percent and the waste oil and the residue organic matters have sulfonation reaction, but the dilute sulfuric acid with the concentration of less than 98 percent does not have sulfonation reaction, once the refined oil contains sulfonated oil seriously corroding metal, the quality and the use are influenced, organic sulfonated oil molecules generated by combining the sulfate radicals and hydrocarbon compounds are difficult to separate from the oil, and similarly, once the sulfuric acid residues are generated in the acid residues, the separation is difficult to cause pollution, but the invention directly uses the sulfuric acid salt complex instead of the sulfuric acid with the concentration of 98 percent, no matter oil and slag are subjected to sulfonation reaction, so that the refined oil has good quality, the chromaticity can reach the national standard, even if a small amount of residual inorganic acid exists in the slag, the acid is not combined with hydrocarbons but exists in a free state, calcium sulfate can be generated by reacting with a slag treating agent calcification compound, such as sulfuric acid which reacts with calcium carbide, calcium oxide and calcium carbonate respectively, gypsum commonly called bean curd is nontoxic, the decomposition temperature is above 1400 ℃, sulfur dioxide cannot be decomposed when the refined oil is used as a solid fuel for combustion, and the combustion temperature of a heating furnace is below 1400 ℃;

3. the invention uses 0.05-0.3% of micro-stabilizer amine salt complex to replace more than 8% of clay high-temperature adsorbent at normal temperature, because the clay oil absorption is 50% of the self weight, the high-temperature condition promotes the further oxidation of oil during the adsorption, which causes the quality of the refined oil to be poor, the loss to be large, the cost to be high, and meanwhile, the clay slag seriously pollutes the environment, but the invention does not use the clay, has no clay slag discharge, and belongs to a clean non-clay method;

in conclusion, the invention belongs to a clean waste oil non-sulfuric acid/carclazyte refining agent, overcomes the defects of the traditional sulfuric acid/carclazyte refining waste oil, is simple, convenient, efficient, low in energy consumption and low in pollution, and has obvious and obvious technical progress.

Detailed Description

The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.