Fuel Additives and Gasoline Containing the Additives

Abstract

The present disclosure relates to a gasoline additive concentrate including a reaction product of (a) 1,8-naphthalic anhydride; and (b) a reaction product of a hydrocarbyl-substituted succinic anhydride with a polyamine. Fuel compositions containing the additive concentrate are also disclosed. Method of reducing greenhouse gas emissions is also disclosed.

1 . A gasoline additive concentrate comprising:
 the product of combining:   (a) a 1,8-naphthalic anhydride; and   (b) a reaction product of a hydrocarbyl-substituted succinic anhydride with a polyamine,   wherein (a) and (b) are present in a molar ratio of 0.5:1 to 1:0.5 wherein the product of (a) and (b) is a gasoline additive concentrate.   
     
     
         2 . The concentrate of  claim 1 , wherein the polyamine is selected from the group consisting of N-dodecyl propanediamine, N-aminopropyl piperazine ethanolamine, N-ethanol ethylene diamine, propylene diamine, dipropylene triamine, di-(1,2-butylene)-triamine, tetra-(1,2-propylene)pentaamine, ethylene diamine, diethylene triamine, triethylene tetraamine, tetraethylene pentamine, pentaethylene hexaamine, heavy polyamine, and mixtures thereof. 
     
     
         3 . The concentrate of  claim 1 , wherein the polyamine is tetraethylene pentamine. 
     
     
         4 . The concentrate of  claim 1 , wherein the hydrocarbyl substituent is polyisobutylene. 
     
     
         5 . The concentrate of  claim 4 , wherein the polyisobutylene has a molecular weight ranging from about 200 to about 5000. 
     
     
         6 . The concentrate of  claim 1 , wherein the concentrate is a reaction product of 1,8-naphthalic anhydride and a polyisobutylene succinic anhydride-tetraethylene pentamine. 
     
     
         7 . (canceled) 
     
     
         8 . The concentrate of  claim 1 , wherein the hydrocarbyl-substituted succinic anhydride and the polyamine are present in a molar ratio of about 1:1 to about 1:1. 
     
     
         9 . The concentrate of  claim 1 , further comprising at least one of a Mannich base detergent and a carrier fluid. 
     
     
         10 . A fuel composition comprising:
 (1) a minor amount of the gasoline additive concentrate of  claims 1 ; and   ( 2 ) a major amount of a hydrocarbon fuel boiling in the gasoline range.   
     
     
         11 . The composition of  claim 10 , further comprising at least one of a Mannich base detergent and a carrier fluid. 
     
     
         12 . The composition of  claim 10 , wherein the hydrocarbyl substituent is polyisobutylene. 
     
     
         13 . The composition of  claim 12 , wherein the polyisobutylene has a molecular weight ranging from about 200 to about 5000. 
     
     
         14 . The composition of  claim 10 , wherein the polyamine is selected from the group consisting of N-dodecyl propanediamine, N-aminopropyl piperazine ethanolamine, N-ethanol ethylene diamine, propylene diamine, dipropylene triamine, di-(1,2-butylene)-triamine, tetra-(1,2-propylene)pentaamine, ethylene diamine, diethylene triamine, triethylene tetraamine, tetraethylene pentamine, pentaethylene hexaamine, heavy polyamine, and mixtures thereof. 
     
     
         15 . The composition of  claim 10 , wherein the polyamine is tetraethylene pentamine. 
     
     
         16 . The composition of  claim 10 , wherein the concentrate is a reaction product of 1,8-naphthalic anhydride and a polyisobutylene succinic anhydride-tetraethylene pentamine. 
     
     
         17 . The composition of  claim 10 , wherein the hydrocarbyl-substituted succinic anhydride and the polyamine are present in a molar ratio of about 1:1. 
     
     
         18 . The composition of  claim 10 , wherein the additive concentrate can be used in the gasoline composition in an amount of 0.1 ptb to about 10 ptb 
     
     
         19 . A method to reduce the amount of deposits in direct injection gasoline engines, said method comprising:
 adding to a gasoline to be combusted in the direct injection gasoline engine a gasoline additive concentrate comprising:
 the product of combining: 
 (a) a 1,8-naphthalic anhydride; and (b) a reaction product of a hydrocarbyl-substituted succinic anhydride with a polyamine,
 wherein (a) and (b) are present in a molar ratio of 0.5:1 to 1:0.5 to form a gasoline composition, then combusting said gasoline composition. 
 
   
     
     
         20 . A method for reducing greenhouse gas emissions, said method comprising: adding to a gasoline to be combusted in the direct injection gasoline engine a gasoline additive concentrate concentrate comprising:
 the product of combining:   (a) a 1,8-naphthalic anhydride; and (b) a reaction product of a hydrocarbyl-substituted succinic anhydride with a polyamine,
 wherein (a) and (b) are present in a molar ratio of 0.5:1 to 1:0.5 to form a gasoline composition, then combusting said gasoline composition.