CN105445150A - Method for rapidly determining content of biodiesel combined glycerin - Google Patents
Method for rapidly determining content of biodiesel combined glycerin Download PDFInfo
- Publication number
- CN105445150A CN105445150A CN201510584398.2A CN201510584398A CN105445150A CN 105445150 A CN105445150 A CN 105445150A CN 201510584398 A CN201510584398 A CN 201510584398A CN 105445150 A CN105445150 A CN 105445150A
- Authority
- CN
- China
- Prior art keywords
- biodiesel
- conjunction
- glycerol content
- kinematic viscosity
- content
- 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
Landscapes
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
The invention provides a method for rapidly determining the content of biodiesel combined glycerin. The method comprises the following specific steps: A, sampling at fixed time in a reaction process of biodiesel and carrying out kinematic viscosity determination on the sample; B, determining the content of the biodiesel combined glycerin of samples simultaneously; C, drawing a standard curve of viscosity and the content of the combined glycerin according to the determined viscosity and content of the combined glycerin; and D, randomly sampling to determine the kinematic viscosity, and reading the corresponding content of the combined glycerin through readings of the kinematic viscosity on the standard curve. The method provided by the invention has the advantages that the content of the biodiesel combined glycerin can be rapidly determined and correlation analysis does not need to be carried out through a chromatography; and the method can be directly used for rapidly determining the content of the biodiesel combined glycerin in an industrialized production process, is convenient and rapid and can be used for accurately determining.
Description
Technical field
The present invention relates to field of biodiesel oil, be specifically related to the method for a kind of Fast Measurement biodiesel in conjunction with glycerol content.
Background technology
At present, biodiesel and fatty acid methyl ester, refer to the hydrophyte greases such as oil crops, Wild oil plant and engineering microalgae and animal fat, food garbage wet goods to be the reproducibility diesel fuel of the replaced petrifaction diesel that feedstock oil is made by ester exchange process.Along with worldwide energy shortage and people are to the pay attention to day by day of environmental protection, environmentally friendly as one, nontoxic, the reproducible alternative fuel of biodiesel, has been subject to countries in the world and has more and more paid close attention to.
An important indicator of evaluation biodiesel fuel quality quality is the content in conjunction with glycerine in biodiesel, exceeds standard, can cause the problems such as carbon on engine, have a strong impact on the use of biodiesel in conjunction with glycerol content.Investigate the content in conjunction with glycerine in biodiesel, generally adopt chromatography to carry out correlation analysis according to GB.But it is higher to buy chromatogram cost, and detection time is long, and testing cost is high, testing process bothers, and general enterprises is difficult to bear, and key is unfavorable for on-line monitoring.And be unfavorable for conveniently monitoring response situation in actual production.Therefore in existing commercial process in conjunction with in the mensuration field of glycerol content, urgently produce and can improve the monitoring method of above-mentioned shortcoming.
Summary of the invention
Object of the present invention is exactly for above-mentioned deficiency, and provides a kind of Fast Measurement biodiesel in conjunction with the method for glycerol content.
Concrete steps of the present invention are as follows:
A. timing sampling in biodiesel course of reaction, carries out kinematic viscosity mensuration by sample,
B. above-mentioned sample is carried out simultaneously biodiesel to measure in conjunction with glycerol content,
C. viscosity said determination drawn and draw out viscosity in conjunction with glycerol content and in conjunction with the typical curve of glycerol content,
D. then arbitrarily sampling measures its kinematic viscosity, is read corresponding to glycerol content by the numerical value of kinematic viscosity on typical curve.
Biodiesel kinematic viscosity measures and measures according to the test method GB/T265 in GB GB/T20828-2014.
Biodiesel measures according to the test method SH/T0796 in GB GB/T20828-2014 in conjunction with its Separation Depuration Craft.
Take kinematic viscosity as horizontal ordinate, with in conjunction with glycerol content for ordinate, draw out kinematic viscosity and the typical curve in conjunction with glycerol content, draw in conjunction with glycerol content computing formula by typical curve, then in biodiesel course of reaction, arbitrarily sampling measures its kinematic viscosity, then kinematic viscosity is inputed in computing formula and calculate in conjunction with glycerol content; Computing formula is:
Y=-0.0007X
2+ 0.058X-0.2214, Y are in conjunction with glycerol content, and X is kinematic viscosity.Goodness of fit R
2=0.9993.
Advantage of the present invention is: the present invention can Fast Measurement biodiesel in conjunction with glycerol content, without the need to carrying out correlation analysis by chromatography, can directly apply in commercial process that biodiesel is in conjunction with the Fast Measurement of glycerol content, convenient and swift, measure accurately.
figure of description
Fig. 1 is kinematic viscosity and the canonical plotting in conjunction with glycerol content.
Embodiment
Concrete steps of the present invention are as follows:
A. timing sampling in biodiesel course of reaction, carries out kinematic viscosity mensuration by sample,
B. above-mentioned sample is carried out simultaneously biodiesel to measure in conjunction with glycerol content,
C. viscosity said determination drawn and draw out viscosity in conjunction with glycerol content and in conjunction with the typical curve of glycerol content,
D. then arbitrarily sampling measures its kinematic viscosity, is read corresponding to glycerol content by the numerical value of kinematic viscosity on typical curve.
Biodiesel kinematic viscosity measures and measures according to the test method GB/T265 in GB GB/T20828-2014.
Biodiesel measures according to the test method SH/T0796 in GB GB/T20828-2014 in conjunction with its Separation Depuration Craft.
Take kinematic viscosity as horizontal ordinate, with in conjunction with glycerol content for ordinate, draw out kinematic viscosity and the typical curve in conjunction with glycerol content, draw in conjunction with glycerol content computing formula by typical curve, then in biodiesel course of reaction, arbitrarily sampling measures its kinematic viscosity, then kinematic viscosity is inputed in computing formula and calculate in conjunction with glycerol content; Computing formula is:
Y=-0.0007X
2+ 0.058X-0.2214, Y are in conjunction with glycerol content, and X is kinematic viscosity, goodness of fit R
2=0.9993.
Specific embodiment one
On biodiesel pilot production line, mol ratio is methyl alcohol and the waste oil of 4: 1, and the biology enzyme (middle Xing Nonggu Hubei company limited) based on oil quality 1% is housed, and temperature controls, at 40 DEG C, to carry out esterification and ester exchange reaction.Sample at 4h, measuring its kinematic viscosity according to the test method GB/T265 in GB GB/T20828-2014 is 9.09, measuring it in conjunction with glycerol content according to the test method SH/T0796 in GB GB/T20828-2014 is 25.257%, according to computing formula Y=-0.0007X
2it is 24.798% that+0.058X-0.2214 calculates in conjunction with glycerol content, and similarity is 101.85%.
Specific embodiment two
On biodiesel pilot production line, mol ratio is methyl alcohol and the waste oil of 4: 1, and the biology enzyme (middle Xing Nonggu Hubei company limited) based on oil quality 1% is housed, and temperature controls, at 40 DEG C, to carry out esterification and ester exchange reaction.Sample at 13h, measuring its kinematic viscosity according to the test method GB/T265 in GB GB/T20828-2014 is 5.48, measuring it in conjunction with glycerol content according to the test method SH/T0796 in GB GB/T20828-2014 is 7.781%, according to computing formula Y=-0.0007X
2it is 7.542% that+0.058X-0.2214 calculates in conjunction with glycerol content, and similarity is 103.17%.
Specific embodiment three
On biodiesel pilot production line, mol ratio is methyl alcohol and the waste oil of 4: 1, and the biology enzyme (middle Xing Nonggu Hubei company limited) based on oil quality 1% is housed, and temperature controls, at 40 DEG C, to carry out esterification and ester exchange reaction.Sample at 16h, measuring its kinematic viscosity according to the test method GB/T265 in GB GB/T20828-2014 is 4.99, measuring it in conjunction with glycerol content according to the test method SH/T0796 in GB GB/T20828-2014 is 5.023%, according to computing formula Y=-0.0007X
2it is 5.059% that+0.058X-0.2214 calculates in conjunction with glycerol content, and similarity is 99.29%.
Claims (2)
1. Fast Measurement biodiesel is in conjunction with a method for glycerol content, it is characterized in that concrete steps are as follows:
A. timing sampling in biodiesel course of reaction, carries out kinematic viscosity mensuration by sample,
B. above-mentioned sample is carried out simultaneously biodiesel to measure in conjunction with glycerol content,
C. viscosity said determination drawn and draw out viscosity in conjunction with glycerol content and in conjunction with the typical curve of glycerol content,
D. then arbitrarily sampling measures its kinematic viscosity, is read corresponding to glycerol content by the numerical value of kinematic viscosity on typical curve.
2. according to claim 1 Fast Measurement biodiesel in conjunction with the method for glycerol content, it is characterized in that taking kinematic viscosity as horizontal ordinate, with in conjunction with glycerol content for ordinate, draw out kinematic viscosity and the typical curve in conjunction with glycerol content, draw in conjunction with glycerol content computing formula by typical curve, then in biodiesel course of reaction, arbitrarily sampling measures its kinematic viscosity, then kinematic viscosity is inputed in computing formula and calculate in conjunction with glycerol content; Computing formula is:
Y=-0.0007X
2+ 0.058X-0.2214, Y are in conjunction with glycerol content, and X is kinematic viscosity,
Goodness of fit R
2=0.9993.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510584398.2A CN105445150A (en) | 2015-09-15 | 2015-09-15 | Method for rapidly determining content of biodiesel combined glycerin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510584398.2A CN105445150A (en) | 2015-09-15 | 2015-09-15 | Method for rapidly determining content of biodiesel combined glycerin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105445150A true CN105445150A (en) | 2016-03-30 |
Family
ID=55555609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510584398.2A Pending CN105445150A (en) | 2015-09-15 | 2015-09-15 | Method for rapidly determining content of biodiesel combined glycerin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105445150A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113848155A (en) * | 2021-09-22 | 2021-12-28 | 陕西正汇公路工程有限公司 | Method for measuring SBS content in SBS modified asphalt |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694450A (en) * | 2009-10-16 | 2010-04-14 | 长安大学 | Method for detecting dose of polymers in modified asphalt based on viscosity-temperature curve |
| CN102507377A (en) * | 2011-09-29 | 2012-06-20 | 中国航空工业集团公司北京航空材料研究院 | Method for determining concentration range of iron siloxane complexes in fluorosilicone oil |
| CN103163044A (en) * | 2011-12-19 | 2013-06-19 | 马涌 | Method of detecting illegal cooking oil by measuring cis-trans conformational changes of unsaturated fattyacid |
| CN103217360A (en) * | 2013-04-10 | 2013-07-24 | 中国石油天然气股份有限公司 | Method for detecting molecular weight of hydrolyzed polyacrylamide |
| CN103792162A (en) * | 2013-12-31 | 2014-05-14 | 广西玉柴机器股份有限公司 | Method for detecting amount of diesel oil mixed in machine oil |
| CN104237447A (en) * | 2014-08-29 | 2014-12-24 | 浙江工业大学 | Method for detecting contents of glyceride and free fatty acid in biodiesel |
-
2015
- 2015-09-15 CN CN201510584398.2A patent/CN105445150A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694450A (en) * | 2009-10-16 | 2010-04-14 | 长安大学 | Method for detecting dose of polymers in modified asphalt based on viscosity-temperature curve |
| CN102507377A (en) * | 2011-09-29 | 2012-06-20 | 中国航空工业集团公司北京航空材料研究院 | Method for determining concentration range of iron siloxane complexes in fluorosilicone oil |
| CN103163044A (en) * | 2011-12-19 | 2013-06-19 | 马涌 | Method of detecting illegal cooking oil by measuring cis-trans conformational changes of unsaturated fattyacid |
| CN103217360A (en) * | 2013-04-10 | 2013-07-24 | 中国石油天然气股份有限公司 | Method for detecting molecular weight of hydrolyzed polyacrylamide |
| CN103792162A (en) * | 2013-12-31 | 2014-05-14 | 广西玉柴机器股份有限公司 | Method for detecting amount of diesel oil mixed in machine oil |
| CN104237447A (en) * | 2014-08-29 | 2014-12-24 | 浙江工业大学 | Method for detecting contents of glyceride and free fatty acid in biodiesel |
Non-Patent Citations (4)
| Title |
|---|
| 何环宇等: "MgO含量对高炉渣粘度影响的实验研究", 《武汉科技大学学报（自然科学版）》 * |
| 刘畅: "粘度法测定废水中聚丙烯酰胺的浓度", 《吉林广播电视大学学报》 * |
| 刘良政等: "黏度法快速测试生物柴油连续生产酯交换反应转化率", 《中国油脂》 * |
| 李泉华: "《热处理技术400问》", 31 March 2002 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113848155A (en) * | 2021-09-22 | 2021-12-28 | 陕西正汇公路工程有限公司 | Method for measuring SBS content in SBS modified asphalt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Monteiro et al. | Determination of biodiesel blend levels in different diesel samples by 1H NMR | |
| CN103398970B (en) | A kind of qualitative and quantitative analysis edible oil also and then detects the method for waste oil | |
| CN103983758B (en) | Portable automobile machine oil device for detecting performance and method | |
| Baêsso et al. | Ultrasonic parameter measurement as a means of assessing the quality of biodiesel production | |
| CN101799411B (en) | Quick detection method of oil quality spectrum for lubricating oil | |
| CN102175719B (en) | CCD visualization self-ignition point tester | |
| CN103134767A (en) | Method for liquor quality identification through infrared spectrum revision | |
| CN103868632B (en) | A kind of contactless axis force of anchor measuring method based on eddy current impedance method | |
| CN102654479A (en) | Fully-digitalized three-dimensional magnetic flux leakage signal acquisition system for metallic pipeline corrosion defect | |
| CN202533370U (en) | Emulsion concentration measurement device | |
| CN103954691B (en) | Nondestructive testing method for material component fraction | |
| CN103149187A (en) | Fluorescent method for rapidly determining content of aliphatic acid | |
| CN102944609A (en) | Complete multichannel white body welding spot detection system | |
| CN203148889U (en) | Nondestructive testing device | |
| CN105445150A (en) | Method for rapidly determining content of biodiesel combined glycerin | |
| Kumbár et al. | Temperature dependence viscosity and density of different biodiesel blends | |
| CN104155360A (en) | Pipeline-in detector signal activating and collecting device and pipeline defect detection method | |
| CN103344937A (en) | Device and method for detecting power consumption of intelligent watt-hour meter | |
| CN105445148A (en) | Method for rapidly determining content of fatty acid methyl ester in biodiesel | |
| CN104330383A (en) | Method for analyzing valence of edible oleic acid by using FTIR method | |
| CN113673155B (en) | Water area sand content inversion method based on support vector machine | |
| CN109164060A (en) | The near infrared ray method of biodiesel iodine number | |
| CN115479549A (en) | Portable field test imager of cement pole | |
| CN103940888A (en) | Method used for detecting anti-oxidant content of transformer oil via linear sweep voltammetry | |
| CN205404410U (en) | Double -light -path method littoral zone water chlorophyll normal position monitoring devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160330 |
|
| WD01 | Invention patent application deemed withdrawn after publication |