Low pour vacuum gas oil compositions

Claim 2

A VACUUM GAS OIL FUEL COMPOSITION COMPRISING A MAJOR AMOUNT OF VACUUM GAS OIL BOILING BETWEEN ABOUT 450* AND 1,050*F. AND HAVING A WAX CONTENT BETWEEN ABOUT 0.5 AND 20 WT,% CONTAINING 1). BETWEEN ABOUT 1 AND 20 WT. % OF AN ASPHALTENE PETROLEUM RESIDUUM HAVING AN ASPHALTENE CONTENT OF BETWEEN ABOUT 4 AND 15 WT. % AND ANAPI GRAVITY OF BETWEEN ABOUT 5* AND 20* AND A CARBON RESIDUE OF BETWEEN ABOUT 5 AND 25 WT % AND 2).BETWEEN ABOUT 0.002 AND 3 WT. % OF AN INTERPOLYMERIC POLY(N-ALKYLACRYLATE) OF A MOLECULAR WEIGHT BETWEEN ABOUT 3,00 AND 100,000 WHEREIN SAID N-ALKYL IS LEAST 18 CARBONS AND WHERE AT LEAST 70 WT. % OF SAID N-ALKYL IS OF 20 TO 24 CARBONS CONSISTING OF BETWEEN ABOUT 2 AND 65 WT. % C20 ALKYL, BETWEEN ABOUT 18 AND 65 WT. % C22 ALKYL, AND BETWEEN ABOUT 8 AND 35 WT. % C24 ALKYL, SAID POLY(NALKYLACRYLATE) INCORPORATED IN SAID BASE STOCK AT A TEMPERATURE ABOVE THE SOLUTION POINT OF SAID WAX.

Claim 3

In the pipeline transportation of viscous fuel oil the improvement which comprises introducing into the said pipeline a fuel composition comprising a major amount of vacuum gas oil boiling between about 450* and 1,050*F. and having a wax content between about 0.5 and 20 wt. % containing 1). between about 1 and 20 wt. % of an asphaltene petroleum residuum having an asphaltene content of between about 4 and 15 wt. % and an API Gravity of between about 5* and 20* and a carbon residue of between about 5 and 25 wt. % and 2). between about 0.002 and 3 wt. % of an interpolymeric poly(n-alkylacrylate) of a molecular weight between about 3,000 and 100,000 and wherein said n-alkyl is at least 18 carbons and where at least 70 wt. % of said n-alkyl is of 20 to 24 carbons consisting of between about 2 and 65 wt. % C20 alkyl, betweem about 18 and 65 wt. % C22 alkyl, and between about 8 and 35 wt. % C24 alkyl, said poly(n-alkylacrylate) incorporated in said base stock at a temperature above the solution point of said wax.

Claim 4

In the pipeline transportation of viscous fuel oil the improvement which comprises introducing into the said pipeline a fuel composition comprising a major amount of vacuum gas oil boiling between about 450* and 1,050*F. and having a wax content between about 0.5 and 20 wt. % containing 1). between about 1 and 20 wt. % of an asphaltene petroleum residuum having an asphaltene content of between about 4 and 15 wt. % and an API Gravity of between about 5* and 20* and a carbon residue of between about 5 and 25 wt. % and 2). between about 0.002 and 3 wt. % of an interpolymeric poly(n-alkylacrylate) of a molecular weight between about 3,000 and 100,000 and wherein said n-alkyl is at least 18 carbons and where at least 70 wt. % of said n-alkyl is of 20 to 24 carbons consisting of between about 2 and 65 wt. % C20 alkyl, betweem about 18 and 65 wt. % C22 alkyl, and between about 8 and 35 wt. % C24 alkyl, said poly(n-alkylacrylate) incorporated in said base stock at a temperature above the solution point of said wax.