Starch-based crude oil demulsifier, and preparation method and application thereof
A crude oil demulsifier and starch-based technology, applied in the field of new starch-based crude oil demulsifiers, can solve the problems of aggravating crude oil demulsification and dehydration, poor adaptability of dehydration effect, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0036] (1) Add the initiator (100g of glycerol, 20g of propylene glycol) and 7g of KOH catalyst into the reaction kettle, heat to 95°C under the protection of nitrogen, vacuum dehydrate for 1h, after dehydration, add dropwise 320g ring Propylene oxide was reacted at 105°C. After the dropwise addition was completed, the heat preservation reaction was continued for 2 hours. After the reaction was completed, it was distilled under reduced pressure, then added phosphoric acid and deionized water to neutralize, and then vacuum dehydrated until the water content was less than 0.01wt%. ether;
[0037] (2) In parts by weight, add 10 parts of soluble starch, 20 parts of deionized water and 30 parts of anhydrous methanol into a closed 250 ml three-necked flask with reflux and stirring;
[0038] (3) Stir slowly until all the soluble starch is dissolved;
[0039] (4) Slowly add 8 parts of p-toluenesulfonic acid under stirring, blow in nitrogen, remove the air in the reaction system, and ...
Embodiment 2
[0044] (1) Put the starter (140g of glycerol, 10g of propylene glycol) and 7g of KOH catalyst into the reaction kettle, heat to 95°C under the protection of nitrogen, vacuum dehydrate for 1h, after dehydration, drop 350g of ring Propylene oxide was reacted at 105°C. After the dropwise addition was completed, the heat preservation reaction was continued for 2 hours. After the reaction was completed, it was distilled under reduced pressure, then added phosphoric acid and deionized water to neutralize, and then vacuum dehydrated until the water content was less than 0.01wt%. ether;
[0045] (2) In parts by weight, add 8 parts of soluble starch, 20 parts of deionized water and 25 parts of anhydrous methanol into a closed 250 ml three-necked flask with reflux and stirring;
[0046] (3) Stir slowly until all the soluble starch is dissolved;
[0047] (4) Slowly add 8 parts of p-toluenesulfonic acid under stirring, blow in nitrogen, remove the air in the reaction system, and stir for...
Embodiment 3
[0052] (1) Add the initiator (glycerol 80g, hexylene glycol 40g) and KOH catalyst 7g into the reaction kettle, heat to 95°C under the protection of nitrogen, vacuum dehydrate for 1h, after dehydration, under 0.4MPa pressure, drip Add 300g of propylene oxide to react at 105°C. After the dropwise addition, continue the heat preservation reaction for 2 hours. After the reaction is over, distill under reduced pressure, then add phosphoric acid and deionized water to neutralize, and then carry out vacuum dehydration until the water content is less than 0.01wt%, and filter After obtaining polyether;
[0053] (2) Add 20 parts of soluble starch, 35 parts of deionized water and 30 parts of anhydrous methanol into a closed 250 ml three-necked flask with reflux and stirring;
[0054] (3) Stir slowly until all the soluble starch is dissolved;
[0055] (4) Slowly add 8 parts of p-toluenesulfonic acid under stirring, pass in nitrogen, remove the air in the reaction system, and stir for 2 h...
PUM
| Property | Measurement | Unit |
|---|---|---|
| viscosity | aaaaa | aaaaa |
| viscosity | aaaaa | aaaaa |
| acid value | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More