Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for simultaneously dephosphorizing and deacidifying oil

A technology for oil and deacidification, which is applied in the field of simultaneous dephosphorization of oil by chelating resin, simultaneous dephosphorization and deacidification of oil, and deacidification, and can solve the problems of poor economy, high price, and increased loss of neutral oil.

Active Publication Date: 2021-04-13
陕西安赛飞特科技有限公司
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of this method are: ① The soapstock generated will inevitably entrain a part of neutral oil; ② When too much alkali is added or the local concentration is too high due to uneven stirring, the alkali will saponify with neutral oil reaction, further increasing the loss of neutral oil
This process has the following disadvantages: ① expensive EDTA cannot be reused, and the economy is poor; ② the dephosphorization effect mainly depends on the degree of dispersion of EDTA in oil, so sodium dodecyl sulfate (SDS) must be added and strong mechanical Stir or shear to promote the full contact and dispersion of the oil and water phases to form small water-in-oil droplets; ③The added SDS needs to be removed by subsequent processes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for simultaneously dephosphorizing and deacidifying oil
  • A method for simultaneously dephosphorizing and deacidifying oil
  • A method for simultaneously dephosphorizing and deacidifying oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Chelating Resin Amberlite IRC748+ Hydration Dephosphorization for Rapeseed Crude Oil Dephosphorization and Deacidification Experiment

[0053] The method used in this embodiment:

[0054] Get 20mL of rapeseed crude oil (phosphorus content: 384.2ppm, acid value: 2.38mg·KOH / g) in the shake flask, add 2g Amberlite IRC748 chelating resin (Rohm and Haas Company, U.S.) whose functional group is IDA . Put the shaker flask into a shaker, and shake at a constant temperature of 60°C and 200r / min for 6h. Then take out the oil phase, add 80°C, 5% vol softened hot water to the oil phase, shake at 80°C, 200r / min for 30min at a constant temperature, and centrifuge at 8000r / min for 20min to obtain refined oil.

[0055] The final phosphorus content after treatment is 0.9ppm, and the acid value after treatment is 0.08mg·KOH / g. See Table 1 and Table 4 for specific parameters.

[0056] Hydration dephosphorization: For comparison, rapeseed crude oil was directly hydrated and dephosphoriz...

Embodiment 2

[0071] Chelating resin Amberlite IRC747+ hydration dephosphorization for soybean crude oil dephosphorization and deacidification experiments

[0072] The inventive method:

[0073] Get 20mL soybean crude oil (phosphorus content: 126.7ppm, acid value: 2.16mg·KOH / g) in shake flask, add 1g functional group is the Amberlite IRC747 chelating resin of aminophosphonic acid (Rohm and Haas Company, USA), put the shaker flask into a shaker, and shake at a constant temperature of 60°C and 200r / min for 6h. Then take out the oil phase, add 5% vol, 80°C demineralized hot water to the oil phase, shake at 80°C, 200r / min for 30min at a constant temperature, and centrifuge at 8000r / min for 20min to obtain the refined oil.

[0074] The final phosphorus content after treatment by this method is 0.8ppm, and the acid value after treatment is 0.39mg·KOH / g. See Table 5 and Table 8 for specific parameters.

[0075] Hydration dephosphorization: for comparison, direct hydration dephosphorization of so...

Embodiment 3

[0088] Chelating resin Amberlite IRC748+ hydration dephosphorization for dephosphorization and deacidification experiment of pepper seed crude oil

[0089]Take 20mL of Amberlite IRC748 resin (Rohm and Haas Company, the United States) and pack it into a column (column diameter 1cm, column length 25cm), and pepper seed crude oil (phosphorus content: 233.5ppm, acid value: 21mg·KOH / g) Into the column, the flow rate is 0.3mL / min, and the collection is stopped when the calcium ion leakage concentration at the column outlet reaches 2ppm, and a total of 4500mL of Zanthoxylum bungeanum seed oil is collected. Take 100mL of resin-treated Zanthoxylum bungeanum seed oil, add 80°C, 5% vol softened hot water, shake at 80°C, 200r / min for 30min, and centrifuge at 8000r / min for 20min to obtain refined oil.

[0090] After being treated by this method, the final phosphorus content is 0.5ppm, and the acid value after treatment is 2.05mg·KOH / g.

[0091] Regenerate the used resin, the specific proc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The method for simultaneous dephosphorization and deacidification of oils and fats disclosed by the invention fully contacts the oil to be treated with a chelating resin, and then removes the phospholipids through a hydration dephosphorization method to obtain dephosphorized and deacidified oils. The method achieves the effect of dephosphorizing and deacidifying oils and fats at the same time through only one section, and the process is more compact; The side reaction of saponification of neutral oil, without the formation of soapstock, avoids the loss of neutral oil due to entrainment by soapstock, thereby improving the yield of neutral oil; compared with the SOFT dephosphorization process, the resin can be processed by cheap Acid and alkali can be reused after regeneration, and there is no need to add emulsifier and carry out strong mechanical stirring or shearing in the operation process; in a word, compared with the prior art, the present invention has short technological process, simple operation, low cost and dephosphorization , The deacidification effect is remarkable.

Description

technical field [0001] The invention belongs to the technical field of oil refining, and relates to a method for simultaneously dephosphorizing and deacidifying oil, in particular to a method for simultaneously dephosphorizing and deacidifying oil by using a chelating resin. Background technique [0002] Crude oil refers to oil that is directly pressed or extracted from oil crops without subsequent refining process, and its main component is a mixture of fatty acid triglycerides (ie neutral oil). In addition, crude oil also contains phospholipids, metal ions, free fatty acids (FFA for short), protein, pigment, water and other substances. It is removed by refining the oil. [0003] In addition, since the phosphorus in biodiesel can poison the diesel engine exhaust catalyst and increase the emission of pollutants, the United States, the European Union, Brazil and other countries and regions have set limits on the phosphorus content in biodiesel, and the Chinese national stand...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C11B3/02
CPCC11B3/02
Inventor 陈斌李蓉窦泽坤马晓迅
Owner 陕西安赛飞特科技有限公司