Subscribe to our free daily newsletters
  Oil and Gas News from OilGasDaily.Com  

Subscribe to our free daily newsletters

An effective solution for collecting spilled petroleum
by Staff Writers
Moscow, Russia (SPX) Nov 10, 2017

This is the result of the surfactants' action.

Chemists from the RUDN University have synthesized new surfactants and studied their characteristics. The compounds obtained can efficiently collect petroleum spilled on the water surface. The scientists have given an account of their work in the Journal of Molecular Liquids.

During their research, the chemists have synthesized new ionic and nonionic surfactants. To do that, they first obtained nonionic surfactants - mono- and diisopropylamines, - and then turned them into the ionic ones, using polymethacrylic acid.

The scientists have identified the physicochemical and colloid-chemical parameters of the compounds produced. An important property of the synthesized substances is their ability to localize thin (less than one millimeter) petroleum films on the surface of water, that is, to limit their distribution, forming thicker oil spillages with lesser area.

"It is known that the problem of the global ocean petroleum pollution is relevant because of the intensification of the rates of petroleum production and the ever-larger volumes of petroleum being transported along the waterways. When spilled petroleum is collected mechanically, a thin film (< 1mm) remains on the surface, which can only be localized by physico-chemical methods, including the use of petroleum-collecting surfactants", - says Ravan Rahimov from the Department of Organic Chemistry of the RUDN University.

Many petroleum-collecting surfactants are not easily dissolved in water. That impedes the diffusion speed and slows down the spillage localization. The researchers have managed to improve both diffusion and adsorption, the latter meaning concentration of substance on the boundary of the mediums, in this case water and petroleum.

In the course of the research the scientists used such methods as nuclear magnetic resonance (NMR) spectroscopy and infrared spectroscopy, dynamic light scattering, conductometry (measuring of the solutions' electroconductivity), and viscometry (measuring of the fluid viscosity). They also used the tensiometric method (precision measurement of surface tension) to establish that compounds produced on the basis of one of the compounds studied, dodecylamine, exhibit the greatest surface activity.

Also, the efficiency of petroleum collection is influenced by the intensity of the formation of micelles - independently formed aggregates of molecules. Their forming is related to the structural features of the surfactant molecules (for example, the size of the nonpolar radical and the nature of the polar group).

The petroleum-collecting surfactant's principle is described by the scientist thusly: "the petroleum-collecting reagent spontaneously spreads and creates surface pressure. This pressure influences the petroleum film on the water surface. When the pressure of the reagent spread is more than the pressure of the petroleum spread, the film thickens and shrinks under the surfactant's spread pressure".

In their work, the chemists cite the data on comparing the compounds they had obtained with other surfactants by their ability to collect petroleum. The compounds synthesized have shown high efficiency in each of the three environments in which the measurements were conducted: distilled, fresh and sea water; in particular, the best results were obtained using the sea water.

The research was conducted in collaboration with the scientists from the Institute of Petrochemical Processes of Azerbaijan National Academy of Sciences.

Research paper

First coast-to-coast land motion map of Scotland derived from satellite radar images
Nottingham UK (SPX) Nov 08, 2017
The first country-wide map of relative land motion has been created by a team at the University of Nottingham. Using hundreds of satellite radar images the team, working with Geomatic Ventures Limited (GVL), an innovative University spin-out company, created a complete map of mainland Scotland. The map covers a two-year period from 2015 to 2017 and was created using Intermittent Small Base ... read more

Related Links
RUDN University
All About Oil and Gas News at

Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once

credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly

paypal only

Comment using your Disqus, Facebook, Google or Twitter login.

Share this article via these popular social media networks DiggDigg RedditReddit GoogleGoogle

Sandia speeds transformation of biofuel waste into wealth

Study identifies additional hurdle to widespread planting of bioenergy crops

Penn researchers mimic giant clams to enhance the production of biofuel

Research aims to help renewable jet fuel take flight

China Saves the World, and America Too by Going Off-The-Grid

In Morocco, a blue tourist town is turning green

Mechanochemistry paves the way to higher quality perovskite photovoltaics

OMCO Solar expands to met demand for field-fast racking systems

New York sets high bar for wind energy

Construction to begin on $160 million Industry Leading Hybrid Renewable Energy Project

A kite that might fly

Scotland outreach to Canada yields wind energy investment

AREVA NP introduces FORERUNNER robot to optimize steam generator inspections

France backtracks on nuclear power reduction target

Nuclear energy programs may not increase likelihood of proliferation

Bulgaria extends life of Soviet-era nuclear reactor

Developing world says rich nations shirking on climate

Cities can cut greenhouse gas emissions far beyond their urban borders

Syria to join Paris climate pact, isolating US

EU to cut car emissions to meet climate targets, rival China

Uber IPO 'target' is 2019: CEO

Vehicle emissions per driver on the rise, study finds

EV corridor will stretch from Norway to Italy

Ford, Chinese firm to invest $756 million on electric cars

Iraq needs 'Marshall Plan', says Kirkuk archbishop

More than two million Iranian pilgrims descend on Iraq

Traditional carpet weaving in central Iraq unravels

Twin Iraq and Syria assaults as IS loses last city

On first Mideast trip, Macron urges 'firm' stance on Iran

NATO discusses Russia missile treaty 'violations': Mattis

US expected to name North Korea terror sponsor

Europe urges US Congress not to torpedo Iran deal

Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News

The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement