CN1613973A - Catalytic diesel fuel decolorant - Google Patents
Catalytic diesel fuel decolorant Download PDFInfo
- Publication number
- CN1613973A CN1613973A CN 200410035667 CN200410035667A CN1613973A CN 1613973 A CN1613973 A CN 1613973A CN 200410035667 CN200410035667 CN 200410035667 CN 200410035667 A CN200410035667 A CN 200410035667A CN 1613973 A CN1613973 A CN 1613973A
- Authority
- CN
- China
- Prior art keywords
- diesel oil
- catalytic
- catalytic diesel
- discoloring agent
- color
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
A catalytic diesel fuel decolourant is produced by: according to properties of various diesel fuels and experiments for adding corresponding agents. Ingredients of catalytic diesel fuel decolourant are determined as follow: consisting of alkali solution 97%; aminothiourea 1%; and carbinol 2%, stirring together at normal temperature and pressure. It is alkalinity with density of 1.4-1.5g/cm3 and color of orange at 20deg.C . Needle-like deposition will disposes at common temperature. To resolve the problem of poor oxidize stability and off color, deep color when mixing with straight-run diesel oil, which affects sale prices of diesel oils.
Description
One, technical field
The present invention relates to a kind of catalytic diesel oil discoloring agent that changes diesel colour.
Two, background technology
At present, the diesel oil of some little refinery productions is rice-pudding black, directly influences the selling price of diesel oil.Major cause is that the catalytic diesel oil oxidation stability is poor, and variable color is fast, makes the color after being in harmonious proportion with straight-run diesel oil darker.Catalytic cracking unit is the secondary processing device of refinery fuel production.Complete processing has determined that the catalytic diesel oil stability is defective.Address the above problem and take hydrorefined way usually, but the hydrofining cost is higher, little refinery plant is not easy to realize, should seek a kind of easy way and delay diesel colour and deepen and muddy problem.
The reason that catalytic diesel oil darkens mainly contains following several respects:
1, non-persistent hydro carbons has diolefine, polymer aromatic hydrocarbon and cycloalkanes aromatic hydrocarbon in the catalytic diesel oil.
2, the sulfide in the catalytic diesel oil, as thiophenol, 1-naphthols etc. diesel oil being produced insoluble sediment has bigger influence, and they are the promotor of diesel oil oxidation.
3, nitride in the catalytic diesel oil, as pyrroles (2, the 5-dimethyl pyrrole), indoles, quinoline etc. diesel oil being produced insoluble sediment has bigger influence.Sulfide and nitride have collaborative promoter action to the insoluble sediment of diesel oil.
The oxidation stability of catalytic cracking diesel oil is poor, oxidation stain easily.Except that the reason of above-mentioned diesel oil own, with the feedstock property of catalytic cracking unit processing, and the storage method of catalytic diesel oil also has very big relation.
Three, summary of the invention
The purpose of this invention is to provide a kind of catalytic diesel oil discoloring agent, it is poor to solve the catalytic diesel oil oxidation stability, and variable color is fast, makes the color after being in harmonious proportion with straight-run diesel oil darker, influences the selling price problem of diesel oil.
Technical scheme of the present invention realizes in the following manner:
According to the major cause that diesel colour deepens, find out the reagent of relative response, and contain oxygen, nitrogen, sulphur compound and carry out chemical reaction, add discoloring agent simultaneously and displace reacted material.Because reacted product mainly is an acidic gum, so select alkali lye as carrier.According to the difference that contains oxygen, nitrogen, sulphur compound in the catalytic diesel oil, add respectively with the reagent of hydrocarbon reaction, with the reagent of sulfide reaction, with the reagent of nitride reaction, and oxidation inhibitor.Will take into account the cost of diesel refining simultaneously, refining effect is good under the selection normal temperature, the reagent that price is relatively cheap.At the analysis and the corresponding test that adds different reagent of the character of different catalytic diesel oils, determine the prescription (volume percent) of catalytic diesel oil discoloring agent: alkali lye: thiosemicarbazide: methyl alcohol=97: 1: 2.Mix at normal temperatures and pressures together the catalytic diesel oil discoloring agent, its discoloring agent is an alkalescence, density (20 ℃) is 1.4-1.5g/cm
3, color is orange, at normal temperatures adularescent spicule precipitation.
The decoloration process of catalytic diesel oil discoloring agent is the catalytic diesel oil discoloring agent of adding temperature under 38 42 ℃ of situations that water-free catalytic diesel oil is heated at 38-42 ℃, volume ratio is 1: 300, stirred 4-8 minute, quiescent settling 2 hours, washing filtering purified diesel oil, must keep in Dark Place one month, and measure the colourity of diesel oil again by standard GB/T6540.Press the oxidation stability total insoluble substance that oil industry standard SH/T0175 measures diesel oil.Reach the requirement of two standards.
The catalytic diesel oil discoloring agent has the following advantages:
1, the diesel oil lucifuge after refining store month colourity and oxidation stability all qualified, good stability.
2, other index of diesel oil is unaffected.
3, the diesel oil loss is little, and diesel oil loses less than 0.2%.
4, good in economic efficiency, total tooling cost is not higher than 25 yuan, and the market value of diesel decoloring agent is about 3000 yuan.
Four, embodiment
For further disclosing technical scheme of the present invention, elaborate below by embodiment:
The prescription of catalytic diesel oil discoloring agent (volume percent): alkali lye 97%: thiosemicarbazide 1%: methyl alcohol 2%.Mix at normal temperatures and pressures together the catalytic diesel oil discoloring agent, its discoloring agent is an alkalescence, density (20 ℃) is 1.4-1.5g/cm
3, color is orange, at normal temperatures adularescent spicule precipitation.
The decoloration process of catalytic diesel oil discoloring agent is the catalytic diesel oil discoloring agent of adding temperature under the 38-42 ℃ of situation that water-free catalytic diesel oil is heated at 38-40 ℃, volume ratio is 1: 300, stirred 4-8 minute, quiescent settling 2 hours, washing filtering purified diesel oil, must keep in Dark Place one month, and measure the colourity of diesel oil again by standard GB/T6540.Press the oxidation stability total insoluble substance that oil industry standard SH/T0175 measures diesel oil.Reach the requirement of two standards, promptly smart diesel oil success, otherwise the catalytic diesel oil discoloring agent is defective.
What of catalytic diesel oil discoloring agent add-on are formed with diesel oil certain relation.The shared ratio difference of various hydro carbons in the diesel oil is to some difference of sensitivity of diesel decoloring agent.At this is to be example to win magnificent education experiment factory catalytic cracking diesel oil, develops the diesel decoloring agent of development, and the character of its catalytic diesel oil sees Table 1.
Table 1 catalytic diesel oil main character
| Project | GB | Data |
| Density (20 ℃), g.cm 3 | Actual measurement | ????0.885 |
| 95% recovered temperature ℃ is not higher than | ????365 | ????355 |
| Sulphur content, % (m/m) is not more than | ????0.2 | ????0.5 |
| Colourity number is not more than | ????3.5 | ????2.5 |
| Oxidation stability, | ||
| Total insoluble substance, mg/mL is not more than | ????2.5 | ????5.6 |
1, catalytic diesel oil discoloring agent essential property: be alkalescence,, density (20 ℃) is 1.4-1.5g/cm
3, color is greenish orange look, at normal temperatures adularescent spicule precipitation.
2, catalytic diesel oil discoloring agent service requirements:
(1) the diesel refining temperature is about 40 ℃, needs purified diesel oil not moisture, promptly only can contain trace water, and the refining back diesel oil residence time is no less than 2 hours, and refined diesel oil is washing more preferably.
(2) the discoloring agent use temperature is about 40 ℃, 20～40 ℃ of storing temps, and agent oil volume ratio is 1: 300.
3, catalytic diesel oil discoloring agent using method:
(1) getting catalytic diesel oil 100ml is 1: 300 adding discoloring agent by agent oil volume ratio.Manually stirred 5 minutes quiescent settling 2 hours.The sample filtration is poured out.
(2) kept in Dark Place 1 month.
(3) press the colourity that standard GB/T6540 measures diesel oil.
(4) press the oxidation stability total insoluble substance that petroleum chemical industry standard SH/T0175 measures diesel oil.
4, the exquisite effect of catalytic diesel oil discoloring agent:
Catalytic diesel oil lucifuge before and after refining was placed one month, it is analyzed its result such as table 2.
The catalytic diesel oil lucifuge was placed result's contrast in month before and after table 2 was refining
| Project | GB | Before refining | After refining |
| Density (20 ℃), g.cm 3 | Actual measurement | ????0.885 | ????0.886 |
| 95% recovered temperature ℃ is not higher than | ????365 | ????360 | ????359 |
| Sulphur content, % (m/m) is not more than | ????0.2 | ????0.50 | ????0.48 |
| Oxidation stability, | |||
| Total insoluble substance, mg/mL is not more than | ????2.5 | ????6.6 | ????2.2 |
As can be seen from Table 2, the catalytic diesel oil lucifuge after refining store month colourity and oxidation stability all qualified.
Claims (2)
1, a kind of catalytic diesel oil discoloring agent that changes diesel colour is characterized in that: (volume percent): alkali lye 97%: thiosemicarbazide 1%: methyl alcohol 2%.
2, catalytic diesel oil discoloring agent according to claim 1, it is characterized in that: with alkali lye 97%, thiosemicarbazide 1%, methyl alcohol 2%, mix at normal temperatures and pressures together the catalytic diesel oil discoloring agent, its discoloring agent is an alkalescence, is 1.4-1.5g/cm 20 ℃ of lower densities
3, color is orange, at normal temperatures and pressures adularescent spicule precipitation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410035667 CN1613973A (en) | 2004-09-11 | 2004-09-11 | Catalytic diesel fuel decolorant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410035667 CN1613973A (en) | 2004-09-11 | 2004-09-11 | Catalytic diesel fuel decolorant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1613973A true CN1613973A (en) | 2005-05-11 |
Family
ID=34763445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410035667 Pending CN1613973A (en) | 2004-09-11 | 2004-09-11 | Catalytic diesel fuel decolorant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1613973A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735850B (en) * | 2009-12-18 | 2012-01-25 | 金浦新材料股份有限公司 | Diesel oil decolorized refining agent |
| CN102925197A (en) * | 2012-08-16 | 2013-02-13 | 李宇翔 | Oil product decolorizing agent |
-
2004
- 2004-09-11 CN CN 200410035667 patent/CN1613973A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735850B (en) * | 2009-12-18 | 2012-01-25 | 金浦新材料股份有限公司 | Diesel oil decolorized refining agent |
| CN102925197A (en) * | 2012-08-16 | 2013-02-13 | 李宇翔 | Oil product decolorizing agent |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bouaid et al. | Long storage stability of biodiesel from vegetable and used frying oils | |
| AU2011257028B2 (en) | Method of assessing chemicals in produced fluids | |
| CN1177973A (en) | Fluorescent petroleum markers | |
| US3862120A (en) | Disazo dyes resistant to adsorption | |
| Dunn | Effects of monoacylglycerols on the cold flow properties of biodiesel | |
| CN1187844A (en) | Colorless petroleum markers | |
| CN109576021A (en) | A kind of modifier and preparation method thereof improving Lubricity of Low-Sulfur Diesel Fuels | |
| CN1613973A (en) | Catalytic diesel fuel decolorant | |
| EP1913369A1 (en) | Method for detecting a fuel additive component | |
| CN1396242A (en) | Energy-saving lead-free gasoline | |
| CN114369479B (en) | Alcohol-based fuel for compression ignition type internal combustion engine and preparation method thereof | |
| US20080194035A1 (en) | Fuel compositions | |
| Thompson et al. | Estimation of Pyrrole Nitrogen in Petroleum Distillates | |
| CN108559574B (en) | Method for producing environment-friendly base oil by using illegal cooking oil | |
| CN1238476C (en) | Gasoline octane level organic additive | |
| AU646410B2 (en) | Method of testing oils | |
| JP3825878B2 (en) | A heavy oil composition with good storage stability | |
| CN1110709A (en) | Method of production of transformer oil with hydrocracking tail oil | |
| LePera et al. | How stable is diesel in storage | |
| CN109536246A (en) | A kind of economize on electricity of efficient antifriction is easily dispersed bobbin oil and preparation method thereof | |
| US1914509A (en) | Motor fuel | |
| JPH0374280B2 (en) | ||
| Wu et al. | Green refining of waste lubricating oil: a china perspective | |
| RU2024589C1 (en) | Composition for illuminants | |
| Gibson et al. | 10. Antiknock Compounds–Research, Development and Refinery Application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |