Unlock instant, AI-driven research and patent intelligence for your innovation.

Recovery method of D28 hydrocarbon solvent oil

A hydrocarbon solvent and recovery method technology, applied in the petroleum industry, processing hydrocarbon oil, etc., can solve the problems of high cost, pollution, shortage of petroleum resources, etc., and achieve the effects of saving resources, high recovery rate, and simple recovery method

Inactive Publication Date: 2017-05-17
JIANGYIN WUYANG CHEM
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the difficulty in the production and refining of hydrocarbon solvent oil and the high cost; coupled with the increasing shortage of petroleum resources and the serious environmental pollution caused by solvent oil discharge, the recovery of isoparaffin solvent oil is of great significance, but there is currently no recovery Good way to isoparaffin spirits

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The recovery method of D28 hydrocarbon solvent oil includes the following steps:

[0018] Step 1. Oxidize the D28 hydrocarbon solvent oil waste liquid, select potassium hydrogen persulfate as the oxidant, and separate the organic layer;

[0019] Step 2. Under the condition of 150~180℃, the separated organic layer is treated with a catalyst. The active components of the catalyst are Mo, Ni, Co, and the catalyst carrier is alumina. The molar ratio of Mo, Ni, Co is 1: 0.5:0.2;

[0020] Step 3, Step 2 The treated liquid is adsorbed with activated carbon, and the crude D28 hydrocarbon solvent oil that slips out is collected;

[0021] Step 4, rectify the collected crude D28 hydrocarbon mineral spirits, and collect the fraction at 115-140°C under a pressure of 5-10mmHg.

[0022] Preferably, in step 2, the temperature at which the catalyst treats the organic layer is 150-160°C.

[0023] The preparation method of the catalyst is to dissolve the carbonate or phosphate of Mo, Ni, Co, add th...

Embodiment 2

[0025] The recovery method of D28 hydrocarbon solvent oil includes the following steps:

[0026] Step 1. Oxidize the D28 hydrocarbon solvent naphtha waste liquid, select sodium peroxide and persulfuric acid as the oxidants, and separate the organic layer;

[0027] Step 2. Under the condition of 150~180℃, the separated organic layer is treated with a catalyst. The active components of the catalyst are Mo, Ni, Co, and the catalyst carrier is alumina. The molar ratio of Mo, Ni, Co is 1: 0.8:0.5;

[0028] Step 3, Step 2 The treated liquid is adsorbed with activated carbon, and the crude D28 hydrocarbon solvent oil that slips out is collected;

[0029] Step 4, rectify the collected crude D28 hydrocarbon mineral spirits, and collect the fraction at 115-140°C under a pressure of 5-10mmHg.

[0030] Preferably, in step 2, the temperature at which the catalyst treats the organic layer is 150-160°C.

[0031] The preparation method of the catalyst is to dissolve the carbonate or phosphate of Mo, Ni...

Embodiment 3

[0033] The recovery method of D28 hydrocarbon solvent oil includes the following steps:

[0034] Step 1. Pass the D28 hydrocarbon solvent oil waste liquid into ozone for oxidation and separate the organic layer;

[0035] Step 2. Under the condition of 150~180℃, the separated organic layer is treated with a catalyst. The active components of the catalyst are Mo, Ni, Co, and the catalyst carrier is alumina. The molar ratio of Mo, Ni, Co is 1: 0.4:0.3;

[0036] Step 3, Step 2 The treated liquid is adsorbed with activated carbon, and the crude D28 hydrocarbon solvent oil that slips out is collected;

[0037] Step 4, rectify the collected crude D28 hydrocarbon mineral spirits, and collect the fraction at 115-140°C under a pressure of 5-10mmHg.

[0038] Preferably, in step 2, the temperature at which the catalyst treats the organic layer is 150-160°C.

[0039] The preparation method of the catalyst is to dissolve the carbonate or phosphate of Mo, Ni, Co, add the carrier, and let it stand; aft...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a recovery method of D28 hydrocarbon solvent oil. The recovery method comprises the following steps: step 1, oxidizing waste liquid of the D28 hydrocarbon solvent oil and separating out an organic layer; step 2, treating the separated organic layer by adopting a catalyst at a temperature of 150-180 DEG C; step 3, absorbing liquid treated in the step 2 with activated carbon and collecting outflow crude D28 hydrocarbon solvent oil; step 4, rectifying the collected crude D28 hydrocarbon solvent oil and collecting a fraction of 115-140 DEG C under pressure of 5-10 mmHg. The recovery method provided by the invention has the advantages that the recovery of the D28 hydrocarbon solvent oil is realized, the recovery rate is high, the recovery method is simple, and resources are saved.

Description

Technical field [0001] The invention relates to a method for recovering solvent oil, in particular to a method for recovering D28 hydrocarbon solvent oil. Background technique [0002] Solvent oils can be divided into aromatic hydrocarbons, dearomatized aliphatics, isoparaffins, cycloalkanes, and normal paraffins. Among them, isoparaffin solvent oils have low freezing point, low odor, low toxicity and good safety. Advantages, widely used in printing and dyeing thinners, ink solvents, metal processing cleaning agents, rust inhibitors, odorless sprays, odorless oil paints, organosol formulations, clothes dry cleaning oils, organic compound carriers, etc. [0003] Due to the difficulty in producing and refining hydrocarbon solvent oil and the high cost; coupled with the increasing shortage of petroleum resources, and the serious pollution of solvent oil discharge to the environment, the recovery of isoparaffin solvent oil is of great significance, but it has not yet been able to recov...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C10G57/00
Inventor 孔瑞用孔维立林国民
Owner JIANGYIN WUYANG CHEM