Clariant International Ltd

Felix Hoevelmann

Jonathan James Wylde

Matthias Krull

Dirk Leinweber

Zachary Thomas Ward

Scot Bodnar

Dan Smith

Lisa Greaney Tejada

Corinna Krüger

The present disclosure relates to a gas hydrate inhibitor composition comprising from an amphiphile having a hydrophobic tail linked to a hydrophilic head group by a linking moiety, the amphiphile having the general formula (1)[R-L-N(R)(R)(R)]X  (1) from a cationic surfactant which is selected from di(C-Calkyl)dimethyl ammonium salts.

Synergistic blends of anti-agglomerant gas hydrate inhibitors with quaternary alkyl ammonium compounds

Provided herein is a method for inhibiting gas hydrate formation in a system containing hydrocarbons and water. The method includes contacting the system with a gas hydrate inhibitor composition including an amidoamine of a fatty acid, optionally in the form of a cationic ammonium compound, and a nonionic surfactant selected from alkoxylated C-Cfatty alcohols, alkoxylated C-Cfatty amines, alkoxylated C-Cfatty acids and alkoxylated C-Cfatty acid amides.

Method of and a composition for controlling gas hydrate blockage through the addition of a synergistically acting blend with alkoxylates of fatty alcohols, fatty amines and fatty acids

This invention relates to a functional fluid, comprising: (A) from 50 to 85 wt.-% of alkoxy glycol according to formula (I): CH—O—(CH—CH—O)—H, wherein n is a number from 2 to 5, with the proviso that in at least 30 wt.-% of all compounds according to formula (I), n is 3, and (B) from 1 to 20 wt.-% of alkoxy glycol according to formula (II): R—O—(CH—CH—O)—H, wherein Ris a C2 to C8 alkyl residue, m is a number from 2 to 6, with the proviso that in at least 65 wt.-% of all compounds according to formula (II), m is 3, and (C) from 6 to 35 wt.-% of at least one compound according to formula (III): H—O—(CH—CH—O)—H, wherein k is a number of 2 or higher, with the proviso that in at least 80 wt.-% of all compounds according to formula (III), k is 2 or 3, (D) at least one additive.

Low viscosity functional fluid composition

Disclosed is a gas hydrate inhibitor composition comprising an amphiphile by a linking moiety, the amphiphile having of the general formula (1)[R-L-N(R)(R)(R)]X  (1) wherein each of Rand Ris an alkyl group having from 1 to 5 carbon atoms; or wherein the nitrogen atom and the Rand Rgroups together form a heterocyclic group; Ris present or not as hydrogen or an alkyl group having from 1 to 8 carbon atoms L is a linking moiety comprising a hydrocarbyl group having at least 2 adjacent carbon atoms, at least one heteroatom selected from nitrogen and oxygen, Ris a hydrocarbyl group having from 6 to 22 carbon atoms; and X− is present as an anion when Ris present; and a cationic surfactant which is selected from quaternary benzyl ammonium salts and a method of using the gas hydrate inhibitor composition.

Synergistic blends of anti-agglomerant gas hydrate inhibitors with quaternary benzyl ammonium compounds

This invention relates to a method for inhibiting the agglomeration of gas hydrates, comprising the injection of an anti-agglomerant comprising a N,N-dialkyl-ammoniumalkyl fatty acid amide represented by the formula (I) wherein Ris an alkyl or alkenyl group having from 7 to 21 carbon atoms, Rand Rare each independently an alkyl group containing 1 to 10 carbon atoms, or together form an optionally substituted ring having 5 to 10 ring atoms, wherein the ring may carry up to 3 substituents, Ris hydrogen or an alkyl group having 1 to 6 carbon atoms, Ris hydrogen or an optionally substituted hydrocarbyl group having 1 to 17 carbon atoms and A is an alkylene group having two or three carbon atoms, into a fluid comprising gas, water and oil under conditions prone to the formation of gas hydrates, wherein the N,N-dialkyl-ammoniumalkyl fatty acid amide represented by the formula (I) is produced by the condensation reaction of a fatty acid with an N,N-dialkylamino alkyl amine and subsequent neutralization with a carboxylic acid.

Method for inhibiting gas hydrate blockage in oil and gas pipelines

This invention relates to a method for inhibiting the agglomeration of gas hydrates, comprising the injection of an anti-agglomerant comprising a N,N-dialkyl-ammoniumalkyl fatty acid amide represented by the formula (I) wherein

The present disclosure relates to a gas hydrate inhibitor composition, comprising 

Method of and a composition for controlling gas hydrate blockage through the addition of a synergistically acting blend with a quaternary benzyl ammonium compound

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Mühldorf, Germany

Felix Hoevelmann