ENGINE CLEANING COMPOSITION AND METHOD FOR CLEANING THE ENGINE

摘要

The present invention provides a method of cleaning an engine having at least one combustion chamber, and the method includes the steps of providing an engine cleaning composition and introducing the cleaning composition into the combustion chamber. The engine cleaning composition includes: (i) 10-100 wt% of an alkanol amine hydroxy carboxylate represented by formula (I)?RCHOHCOONH?a+1#191((CH2)?n#191OH)?b#191 (I), wherein n is an integer in the range of 1 to 10; a is 0, 1 or 2; b is 1, 2 or 3; such that a + b = 3; R represents hydrogen atom or alkyl; (ii) 0-90 wt% of a surfactant; (iii) 0-90 wt% of a solvent; and (iv) 0-90 wt% of water. The present invention also provides an engine cleaning composition to remove carbon deposit from engines.