Exxonmobil Research and Engineering Company

Ohio University

Fang Cao

Alan Mark Schilowitz

Saul Charles Blum

Henry Alan Wolf

Shiun Ling

Changyub Paek

Partha Nandi

H Alan Wolf

Vera Grankina

Xiaozhou Zhang

Mohor Chatterjee

Srdjan Nesic

James E McLaughlin

Srdan Nesic

Peng Jin

Gheorghe Bota

James Mclaughlin

The present disclosure relates to glycolipid compositions, methods for making glycolipid compositions, and their uses thereof. Glycolipid compositions can be prepared via yeast-mediated catalyzed reaction, and exhibit excellent surfactant properties having high corrosion inhibition performance, good reducing surface tension efficiency. Processes of the present disclosure can provide glycolipid compositions having one or more of: a ratio of lactonic glycolipids to glycolipid acylic esters is from about 1:10 to about 10:1, a molecular weight of from about 400 g/mol to about 10,000 g/mol, a corrosion rate of carbon steel from about 0.5 MPY to about 100 MPY at room temperature and at pH 4-6. Furthermore, aqueous solutions of the glycolipid compositions of the present disclosure can have a surface tension of from about 20 mN/m to about 80 mN/m.

Glycolipid composition and method thereof

A method for determining and identifying corrosion protective layers that provide corrosion protection against crude oils and crude oil fractions is disclosed. The method identifies naturally occurring constituents in crude oils that indirectly provide corrosion protection. A method assessing the potential of these constituents is also disclosed. The method includes exposing metal coupons with the crude oil or crude fraction of interest at the expected operating temperature of concern. The corrosion potential assessment further analyzes the exposed coupons with transmission electron microscopy and an additional high temperature exposure that challenges the tenacity of the protection offered by the corrosion protective layer.

Method for identifying layers providing corrosion protection in crude oil fractions

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Basking Ridge, NJ, United States of America

Fang Cao