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US 2019/0194449 A1Published application
Heavy oil demulsifier
AssigneeHongbin Zhu
InventorsHongbin Zhu, Hope Lewis, Bozhao Shao
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Abstract
This invention provides a composite type heavy oil demulsifier and its preparation methods. The demulsifier includes two effective constituents. The constituent I is an amino nonionic dendritic polyether and the constituent II is a dendritic ester acid. The structural formula is presented as Formula I and II, respectively. The demulsifier has good abilities in interfacing between oil and water and reducing viscosity. It has good demulsification performance in breaking crude oil emulsion and is useful in heavy crude oil production and petroleum refining.
Claims5
A heavy oil demulsifier, comprising:
- Constituent I that is a dendritic polyether of Formula I, wherein, PO represents oxypropylene, EO represents oxyethylene, x represents numbers between 10 and 100 inclusive, and y represents numbers between 5 and 60 inclusive;
- Constituent II that is a dendritic ester acid of Formula II, wherein p represents numbers between 5 and 20 inclusive;
- and
- a solvent including one or more solvents selected from the group consisting of water, methanol, ethanol, and xylene.
1 more element
Dependencies are inferred from the claim text.