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

Enhanced antistatic additives for hydrocarbon fuels & solvents

a technology of hydrocarbon fuels and solvents, applied in the direction of fuels, liquid carbonaceous fuels, petroleum industry, etc., can solve the problems of high consumption, high consumption, and high danger of explosion or fire, and achieve enhanced performance and high efficiency at low usage levels

Inactive Publication Date: 2007-09-27
INNOSPEC FUEL SPECIALITIES LLC
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005] The two-component antistatic additives of this invention are characterized by being highly effective at low levels of usage and by being ashless upon burning. These two-component antistatic additives are so efficient that even at relatively low concentrations they provide the desired conductivity (measured in picomhos per meter, or picoSiemens / meter) in nearly all hydro-carbon fuels. This performance is enhanced when the solvent for polymerization of the olefin and sulfur dioxide is ortho-xylene.
[0035] A suitable quaternary ammonium compound is dicocodimethyl ammonium nitrite wherein “coco” refers to a mixture of C8 to C18 alkyl radicals of cocoamine. The quaternary ammonium compound can be present in the amounts of from about 1 part to 25 parts per 100 parts of polysulfone copolymer. The presence of a quaternary ammonium compound further enhances the electrical conductivity of the present invention composition in many hydrocarbon fuels and maintains the composition ash-free.

Problems solved by technology

Hydrocarbon fuels normally are very poor conductors of electricity.
Electrical charges, therefore, tend to accumulate in the fuel and can be discharged as sparks thus creating the danger of an explosion or fire should such charges ignite hydrocarbon-air admixtures that may be present.
These solvents contain impurities which may result in a potentially toxic situation.

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
  • Enhanced antistatic additives for hydrocarbon fuels & solvents
  • Enhanced antistatic additives for hydrocarbon fuels & solvents
  • Enhanced antistatic additives for hydrocarbon fuels & solvents

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

The Polysulfones:

[0039] The polysulfone compolymers often designated as olefin-sulfur dioxide copolymer, olefin polysulfones, or poly(olefin sulfone) are polymers wherein the structure is considered to be that of alternating copolymers of the olefins and sulfur dioxide, having a one-to-one molar ratio of the comonomers with the olefins in head to tail arrangement. The polysulfones used in this invention are readily prepared by the methods known in the art (cf. Encyclopedia of Polymer Science and Technology Vol. 9, Interscience Publishers, page 460 etc, the entire teaching of which is incorporated herein by reference).

[0040] The weight average molecular weights of the polysulfones are in the range from about 10,000 to about 1,500,000, in one aspect the range is from about 50,000 to about 900,000, and in another aspect the molecular weights range from about 100,000 to about 500,000. Olefin polysulfones whose molecular weights are below about 10,000, while effective in increasing co...

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

PropertyMeasurementUnit
Fractionaaaaaaaaaa
Fractionaaaaaaaaaa
Fractionaaaaaaaaaa
Login to View More

Abstract

Described herein are enhanced performance of antistatic additive compositions for hydrocarbon fuels, the compositions comprising olefin-sulfur dioxide copolymers in combination with polymeric polyamines prepared using an ortho-xylene solvent.

Description

FIELD OF THE INVENTION [0001] This invention concerns an improved two-component antistatic additive for hydrocarbon fuels and solvents to render them electrically conductive. One component is an olefin-sulfur dioxide copolymer (polysulfone copolymer) prepared in orthoxylene, and the other component is a particular polymeric polyamine. BACKGROUND OF THE INVENTION [0002] Hydrocarbon fuels normally are very poor conductors of electricity. Electrical charges, therefore, tend to accumulate in the fuel and can be discharged as sparks thus creating the danger of an explosion or fire should such charges ignite hydrocarbon-air admixtures that may be present. [0003] Numerous materials have been suggested in the art to increase the electrical conductivity of hydrocarbon fuels. Suggested materials include two-component additives where one component is a polysulfone and the other is a quaternary ammonium compound. Another suggested two-component additive comprises polysulfone as one component an...

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): C10L1/24C10L1/22
CPCC08K5/42C08L79/02C10L1/2641C08L81/06C10L1/143C10L1/146C10L1/1608C10L1/221C10L1/2222C10L1/2225C10L1/238C10L1/2383C10L1/2437C10L1/2462C10L1/2468C10L1/2475C08L81/00
Inventor HENRY, CYRUS PERSHING JR.
Owner INNOSPEC FUEL SPECIALITIES LLC
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