Compositions, methods and uses

A method of reducing the pour point of a composition comprising a pyrolysis oil, the method comprising adding to the composition one or more additives selected from:

• (a) an aldehyde-alkylphenol copolymer and/or an aldehyde-alkylphenol-polyamine copolymer, wherein the alkylphenol of the copolymer comprises an alkyl group having at least 30 carbon atoms;
• and
• (b) the reaction product of an alcohol and/or amine with a copolymer of an alpha-olefin and an ethylenically unsaturated carboxylate compound, wherein the alpha-olefin and/or the alcohol and/or amine has at least 30 carbon atoms.

A use of one or more additives to reduce the pour point of a composition comprising a pyrolysis oil, wherein the one or more additives are selected from:

• (a) an aldehyde-alkylphenol copolymer and/or an aldehyde-alkylphenol-polyamine copolymer, wherein the alkylphenol of the copolymer comprises an alkyl group having at least 30 carbon atoms;
• and
• (b) the reaction product of an alcohol and/or amine with copolymer of an alpha-olefin and an ethylenically unsaturated carboxylate compound, wherein the alpha-olefin and/or the alcohol and/or amine has at least 30 carbon atoms.