Marine fuel compositions

Abstract

Fuel or fuel blending compositions corresponding to blends of a resid-containing fraction one or more fatty acid alkyl esters are provided, along with methods for forming such a fuel or fuel blending composition are also provided. Optionally, the fuel or fuel blending composition can further include a secondary flux. The secondary flux can correspond to additional renewable flux or conventional distillate flux. Optionally, the amount of renewable flux can correspond to 25 vol % or more of the fuel or fuel blending composition. Optionally, the resulting fuel or fuel blending composition can have a BMCI−TE difference value of 15 or less.

1 . A fuel or fuel blending composition comprising 20 vol % or more of a resid-containing fraction and 5 vol % to 80 vol % of one or more fatty acid alkyl esters, the one or more fatty acid alkyl esters comprising a BMCI of 50 or less and a S BN  of 55 or more. 
     
     
         2 . The fuel or fuel blending composition of  claim 1 , wherein the resid-containing fraction comprises a BMCI−TE difference value of 50 or less. 
     
     
         3 . The fuel or fuel blending composition of  claim 1 , wherein the fuel composition comprises 20 vol % or more of the one or more fatty acid alkyl esters. 
     
     
         4 . The fuel or fuel blending composition of  claim 1 , wherein the S BN  of the one or more fatty acid alkyl esters is greater than a S BN  of the resid-containing fraction. 
     
     
         5 . The fuel or fuel blending composition of  claim 1 , wherein the fuel or fuel blending composition comprises 25 vol % or more of a renewable flux, or wherein the fuel or fuel blending composition comprises 10 vol % or more of the one or more fatty acid alkyl esters, or a combination thereof. 
     
     
         6 . The fuel or fuel blending composition of  claim 1 , further comprising 5 vol % to 25 vol % of a secondary flux, the secondary flux comprising a BMCI of 40 or less and a S BN  of 50 or less. 
     
     
         7 . The fuel or fuel blending composition of  claim 1 , wherein the resid-containing fraction comprises a S BN −I N  difference value of 40 or less, or wherein the fuel composition comprises a S BN −I N  difference value of 20 or more, or a combination thereof. 
     
     
         8 . The fuel or fuel blending composition of  claim 1 , wherein the resid-containing fraction comprises a kinematic viscosity at 50° C. of 30 cSt or more, or wherein the resid-containing fraction comprises a density at 15° C. of 0.95 g/cm 3  or more, or a combination thereof. 
     
     
         9 . The fuel or fuel blending composition of  claim 1 , wherein the resid-containing fraction has a T90 distillation point of 550° C. or more, or wherein the resid-containing fraction comprises 5.0 wt % or more of micro carbon residue, or a combination thereof. 
     
     
         10 . The fuel or fuel blending composition of  claim 1 , wherein the fuel or fuel blending composition comprises a kinematic viscosity at 50° C. of 380 cSt or less. 
     
     
         11 . The fuel or fuel blending composition of  claim 1 , wherein the fuel or fuel blending composition comprises a kinematic viscosity at 50° C. of 380 cSt or less. 
     
     
         12 . The fuel or fuel blending composition of  claim 1 , wherein the fuel or fuel blending composition comprises a sediment level of 0.1 wt % or less, or wherein the fuel or fuel blending composition comprises 5000 wppm or less of sulfur, or a combination thereof. 
     
     
         13 . The fuel or fuel blending composition of  claim 1 , wherein the fuel or fuel blending composition comprises a sulfur content of 1000 wppm or less, or a sulfur content of 800 wppm or more, or a combination thereof. 
     
     
         14 . The fuel or fuel blending composition of  claim 1 , wherein the one or more fatty acid alkyl esters comprise one or more fatty acid methyl esters. 
     
     
         15 . Use of a fuel comprising the fuel or fuel blending composition of  claim 1  as a fuel in a combustion device. 
     
     
         16 . A method for forming a fuel or fuel blending composition according to  claim 1 , comprising blending 20 vol % or more of a resid-containing fraction and 5 vol % to 80 vol % of one or more fatty acid alkyl esters to form the fuel composition, the one or more fatty acid alkyl esters comprising a BMCI of 50 or less and a S BN  of 55 or more. 
     
     
         17 . The method of  claim 16 , wherein the resid-containing fraction comprises a BMCI−TE difference value of 50 or less. 
     
     
         18 . The method of  claim 16 , wherein the fuel composition comprises 20 vol % or more of the one or more fatty acid alkyl esters. 
     
     
         19 . The method of  claim 16 , wherein the S BN  of the one or more fatty acid alkyl esters is greater than a S BN  of the resid-containing fraction, or wherein the one or more fatty acid alkyl esters comprise one or more fatty acid methyl esters, or a combination thereof. 
     
     
         20 . The method of  claim 16 , further comprising 5 vol % to 25 vol % of a secondary flux, the secondary flux comprising a BMCI of 40 or less and a S BN  of 50 or less.