Renewable fuel/lubricant mixture for use in a two-stroke internal combustion engine

Abstract

A method is provided, which includes operating a two-stroke engine with a lubricating fuel, the lubricating fuel including at least one fuel selected from the group including C 1-6 alcohol, gasoline, ether, ketone, nitromethane, and a mixture thereof, and at least one lubricant selected from the group including biodiesel, lipid, fatty acid alkyl ester, fatty acid, and a mixture thereof. Lubricating fuel compositions are also provided.

1 . A method, comprising: 
 operating a two-stroke engine with a lubricating fuel, the lubricating fuel comprising:    at least one fuel selected from the group consisting of C 1-6  alcohol, gasoline, ether, ketone, nitromethane, and a mixture thereof; and    at least one lubricant selected from the group consisting of biodiesel, lipid, fatty acid alkyl ester, fatty acid, and a mixture thereof.    
   
   
       2 . The method of  claim 1 , wherein the fuel is C 1-6  alcohol or a mixture comprising C 1-6  alcohol and one or more of gasoline, ether, ketone or nitromethane.  
   
   
       3 . The method of  claim 1 , wherein the fuel is ethanol.  
   
   
       4 . The method of  claim 1 , wherein the fuel is gasoline or a mixture comprising gasoline and one or more of C 1-6  alcohol, ether, ketone or nitromethane.  
   
   
       5 . The method of  claim 1 , wherein the fuel is ether or a mixture comprising ether and one or more of C 1-6  alcohol, gasoline, ketone or nitromethane.  
   
   
       6 . The method of  claim 1 , wherein the fuel is ketone or a mixture comprising ketone and one or more of C 1-6  alcohol, gasoline, ether, or nitromethane.  
   
   
       7 . The method of  claim 1 , wherein the fuel is nitromethane or a mixture comprising nitromethane and one or more of C 1-6  alcohol, gasoline, ether or ketone.  
   
   
       8 . The method of  claim 1 , wherein the fuel is present in the lubricating fuel in an amount of 40% to less than 100% by weight.  
   
   
       9 . The method of  claim 1 , wherein the lubricant is biodiesel or a mixture comprising biodiesel and one or more of lipid, fatty acid alkyl ester or fatty acid.  
   
   
       10 . The method of  claim 1 , wherein the lubricant is lipid or a mixture comprising lipid and one or more of at least one lubricant selected from the group consisting of biodiesel, fatty acid alkyl ester or fatty acid.  
   
   
       11 . The method of  claim 1 , wherein the lubricant is fatty acid alkyl ester or a mixture comprising fatty acid alkyl ester and one or more of biodiesel, lipid or fatty acid.  
   
   
       12 . The method of  claim 1 , wherein the lubricant is fatty acid or a mixture comprising fatty acid and one or more of biodiesel, lipid or fatty acid alkyl ester.  
   
   
       13 . The method of  claim 1 , wherein the lubricant is present in the lubricating fuel in an amount of greater than zero to 60% by weight.  
   
   
       14 . The method of  claim 1 , wherein the two-stroke engine is a spark-ignited two-stroke engine.  
   
   
       15 . The method of  claim 1 , wherein the two-stroke engine is a compression-ignited two-stroke engine.  
   
   
       16 . The method of  claim 1 , wherein the lubricating fuel further comprises at least one selected from the group consisting of a cold flow improvement agent, an ignition improvement agent, a corrosion inhibiting agent, an antimicrobial agent, water, two-stroke engine oil, and a mixture thereof.  
   
   
       17 . A lubricating fuel, comprising: 
 at least one fuel selected from the group consisting of C 1  alcohol, C 3-6  alcohol, gasoline, ether, ketone, nitromethane, and a mixture thereof; and    at least one lubricant selected from the group consisting of biodiesel, lipid, fatty acid alkyl ester, fatty acid, and a mixture thereof.    
   
   
       18 . The lubricating fuel of  claim 17 , wherein the lubricating fuel is suitable for operating a two-stroke engine.  
   
   
       19 . The lubricating fuel of  claim 17 , wherein the fuel is present in an amount of 40% to less than 100% by weight.  
   
   
       20 . The lubricating fuel of  claim 17 , wherein the lubricant is present in an amount of greater than zero to 60% by weight.  
   
   
       21 . The lubricating fuel of  claim 17 , further comprising at least one selected from the group consisting of a cold flow improvement agent, an ignition improvement agent, a corrosion inhibiting agent, an antimicrobial agent, water, two-stroke engine oil, and a mixture thereof.  
   
   
       22 . A method, comprising operating a two-stroke engine with the lubricating fuel of  claim 17 .  
   
   
       23 . A lubricating fuel, comprising: 
 at least one fuel selected from the group consisting of C 1-6  alcohol, gasoline, ether, ketone, nitromethane, and a mixture thereof; and    at least one lubricant selected from the group consisting of lipid, fatty acid, and a mixture thereof.    
   
   
       24 . The lubricating fuel of  claim 23 , wherein the lubricating fuel is suitable for operating a two-stroke engine.  
   
   
       25 . The lubricating fuel of  claim 23 , wherein the fuel is present in an amount of 40% to less than 100% by weight.  
   
   
       26 . The lubricating fuel of  claim 23 , wherein the lubricant is present in an amount of greater than zero to 60% by weight.  
   
   
       27 . The lubricating fuel of  claim 23 , further comprising at least one selected from the group consisting of a cold flow improvement agent, an ignition improvement agent, a corrosion inhibiting agent, an antimicrobial agent, water, two-stroke engine oil, and a mixture thereof.  
   
   
       28 . A method, comprising operating a two-stroke engine with the lubricating fuel of  claim 23.