Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Biodegradation test method of synthetic oil and vegetable oil-based lubricating oil product

A biodegradable, vegetable oil-based technology, applied in the field of biodegradation testing of synthetic oils and vegetable oil-based lubricating oil products, achieves the effects of low cost, stable data reproducibility and repeatability, and wide application prospects

Inactive Publication Date: 2010-06-23
TIANJIN NANKAI UNIV CASTOR ENG SCI & TECH
View PDF0 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Has broad application prospects

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Biodegradation test method of synthetic oil and vegetable oil-based lubricating oil product
  • Biodegradation test method of synthetic oil and vegetable oil-based lubricating oil product
  • Biodegradation test method of synthetic oil and vegetable oil-based lubricating oil product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] 1. Culture medium preparation

[0030] Acclimatization medium: KH 2 PO 4 3.4g; Na 2 HPO 4 1.5g; (NH 4 ) 2 SO 4 4.0g; MgSO 4 0.7g; yeast powder 0.01g; castor-based lubricating oil 2g; tap water 1000mL; adjust the pH to 7.2-7.6

[0031] Seed medium: peptone 1.4%, NaCl 0.6%, glucose 0.3%, beef extract 0.5%, KH 2 PO 4 0.5%, K 2 HPO 4 0.4%; the culture temperature is 37°C, and the pH value of the medium is 7.5.

[0032] Degradation medium mineral nutrient solution: KH 2 PO 4 3.4g; Na 2 HPO 41.5g; (NH 4 ) 2 SO 4 4.0g; MgSO 4 0.7g; yeast powder 0.01g; tap water 1000mL; adjust the pH to 7.2-7.6.

[0033] 2. Soil collection and domestication of degrading bacteria

[0034] 1) Requirements for collecting soil: collect the activated sludge from the aeration tank, and the sampling depth is 15-30cm; the collection equipment is a sterilized soil collector and a plastic sealing bag.

[0035] 2) Soil and treatment: After the soil is collected and aerated f...

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 biodegradation test method of a synthetic oil and vegetable oil-based lubricating oil product. The collected activated sludge is accessed to a synthetic oil and vegetable oil-based lubricating oil degradation culture medium after acclimatization and the tested microorganism bacteria solution biomass in the degradation culture medium and the lubricating oil organic matter residue in a liquid phase culture medium are served as an evaluation method and standard for evaluating the biodegradation rate of the synthetic oil and vegetable oil-based lubricating oil after seven days of continuous shaking culture under constant temperature. The biodegradation test method is a biodegradation evaluation method of the synthetic oil and vegetable oil-based lubricating oil, which has simple and convenient operation, good data reproducibility and stable repeatability and is applicable to biodegradable lubricating oil with different specifications and viscosity grades. The method is applied in the biodegradation tests of castor-based fully-synthetic high-performance lubricating oil products and uses the castor oil which has the degradation rate of about 96% in the literature reports as the reference oil, the tested degradation rate of the castor oil is 97%, and the degradation rate of the castor-based fully-synthetic high-performance lubricating oil reaches up to 85%.

Description

【Technical field】 [0001] The invention relates to an evaluation method of biodegradable lubricating oil, in particular to a biodegradation testing method of synthetic oil and vegetable oil-based lubricating oil products. 【Background technique】 [0002] At present, many countries in the world have started the development and use of biodegradable lubricating oil, so at the same time there will be the establishment of corresponding biodegradable performance standards. The standards of lubricating oil biodegradability in each country must be determined according to the social status of each country. Certainly. The biodegradation methods of lubricating oil products mainly include: one is to evaluate the biodegradation rate by measuring the consumption of oxygen and the generation of carbon dioxide; the other is to evaluate the biodegradation rate by measuring the residual amount of lubricating oil after microbial cultivation. These two methods are currently the most widely used ...

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
IPC IPC(8): C12Q1/02G01N21/31G01N21/84
CPCC12P1/00C02F1/00C02F9/00G01N33/56911
Inventor 吴新世张盈孟祥云
Owner TIANJIN NANKAI UNIV CASTOR ENG SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com