Low sulfur diesel blockage inhibitor, preparation method therefor and use thereof
AssigneesChina Petroleum & Chemical Corporation, Sinopec Dalian Research Institute of Petroleum and Petrochemicals Co., Ltd.
InventorsLanpeng Li, Changhai Cao, Jin Cheng, Xiuzheng Li, Yidi Wang
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Abstract
A low sulfur diesel blockage inhibitor as shown in formula (I), a preparation method therefor, and use thereof are provided. In formula (I), x and y are each an integer between 0 and 4; m and n are each selected from H, a C1-C6 linear or branched alkyl group, or a C3-C6 cycloalkyl group. By using a vegetable oil as a raw material, a modified vegetable oil fatty acid is first obtained, and then a polar group of an unsaturated dialdehyde with a certain chain length is introduced into a molecular chain of the modified vegetable oil fatty acid.
Claims20
A compound represented by Formula (I):
- wherein x and y are each an integer between 0 and 4;
- m and n are each an integer between 3 and 9, and 10≤m+n≤14;
- and R1 and R2 are independently chosen from H, a C1-C6 linear or branched alkyl group, or a C3-C6 cycloalkyl group.
A method for preparing a vegetable oil based blockage inhibitor, wherein the method comprises the following steps:
- (1) subjecting a non-conjugated vegetable oil to a haptoreaction with an alkali or an alcohol solution of an alkali under isomerization reaction condition;
- (2) acidifying and washing a product obtained from the haptoreaction, and then separating out an aqueous phase to obtain a modified vegetable oil fatty acid;
- (3) contacting the modified vegetable oil fatty acid with an unsaturated dialdehyde under Diels-Alder addition reaction condition to form a mixture;
- and
- (4) removing unreacted raw materials from the mixture obtained from step (3).
Dependencies are inferred from the claim text.