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Oil absorption material using cellulose as base and preparation method thereof

An oil-absorbing material and cellulose technology, which is applied in the field of absorbing materials for marine oil spills and their preparation, can solve the problems of producing harmful gases, high transportation costs, and small oil absorption, and achieve lipophilic and hydrophobic performance and dimensional stability. Improve, rich in resources, good oil absorption effect

Inactive Publication Date: 2013-06-12
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, natural inorganic materials have the disadvantages of low oil absorption, poor oil retention rate, easy water absorption, and high transportation costs, and synthetic polymer oil-absorbing materials have poor oil resistance and produce harmful gases when processing absorbed oil. Therefore, high-efficiency oil-absorbing materials have been developed. , as a high-efficiency oil absorbent to deal with oil spill pollution is of great significance for improving the marine environment and water quality

Method used

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  • Oil absorption material using cellulose as base and preparation method thereof
  • Oil absorption material using cellulose as base and preparation method thereof
  • Oil absorption material using cellulose as base and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Cut the corn stalks into 10-20cm long pieces and soak them in boiling water at 100°C for 48 hours, then dry them in the sun to remove the moisture on the surface of the stalks, and dry them in a vacuum oven at 80°C for 16 hours.

[0026] (2) The dried corn stalks were pretreated by the ammonia circulation blasting method, the reaction temperature was 70°C, the reaction pressure was 1.8Mpa, the maintenance pressure time was 5min, and the flow rate of ammonia water was 2L / min. Specifically, the corn stalks were put into Into the ammonia explosion reactor and add deionized water, after closing the valve, slowly feed ammonia water into the system, use steam to heat to the predetermined reaction temperature, and use the ammonia pump to make the ammonia water flow in the pump-ammonia explosion reactor- The ammonia liquid buffer tank circulates and flows. When the predetermined reaction time is reached, the starting ball valve is opened, and the pressure is released instant...

Embodiment 2

[0033] (1) Cut corn stalks into 10-20cm long pieces and soak them in boiling water at 100°C for 48 hours, then dry them in the sun to remove moisture from the surface of the stalks, and dry them in a vacuum oven at 60°C for 16 hours.

[0034] (2) In step 2, the dried corn stalks are pretreated by the ammonia water circulation blasting method. The reaction temperature is 90°C, the reaction pressure is 0.9Mpa, the pressure maintenance time is 9min, and the ammonia water flow rate is 1L / min. Specifically, refer to Master's degree thesis "Research on the Pretreatment Effect of Ammonia Water Blasting Method on Corn Stalks", Zhang Chao, June 2010.

[0035] (3) Soak the straw treated in step (2) in a mixture of benzene and ethanol with a volume ratio of 2:1 for 20 hours, filter it out, and dry it in a vacuum drying oven at 60°C for 6 hours.

[0036] (4) Place the dried corn stalks in distilled water, heat and pretreat in a water bath at 70°C for 5 hours, then cool and filter.

[003...

Embodiment 3

[0041] (1) Cut corn stalks into 10-20cm long pieces and soak them in boiling water at 100°C for 48 hours, then dry them in the sun to remove moisture from the surface of the stalks, and dry them in a vacuum oven at 60°C for 16 hours.

[0042] (2) In step 2, the dried corn stalks were pretreated by the ammonia circulation blasting method, the reaction temperature was 80°C, the reaction pressure was 1.2Mpa, the pressure maintenance time was 7min, and the ammonia flow rate was 1.5L / min. Specifically, Refer to the master's degree thesis "Research on the Pretreatment Effect of Ammonia Water Blasting Method on Corn Stalks", Zhang Chao, June 2010.

[0043] (3) Soak the straw treated in step (2) in a mixture of benzene and ethanol with a volume ratio of 2:1 for 20 hours, filter it out, and dry it in a vacuum drying oven at 60°C for 6 hours.

[0044] (4) Place the dried corn stalks in distilled water, heat and pretreat in a water bath at 70°C for 5 hours, then cool and filter.

[0045...

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Abstract

The invention discloses an oil absorption material using cellulose as a base and a preparation method thereof. The preparation method comprises the following steps: pretreating the raw material corn straws with sodium hydroxide and sodium hypochlorite to extract cellulose, and carrying out acetylation modification on the cellulose with acetic anhydride to obtain the natural high-efficiency oil absorption material. The technical scheme disclosed by the invention has efficient adsorption effect on marine oil spill; the oil absorption rate can reach more than 60 times; and the preparation method has the advantages of simple process and easy recovery.

Description

technical field [0001] The invention belongs to a technology for removing organic pollutants in a seawater system in a large range, and more specifically relates to an adsorption material for marine oil spill and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the oil industry and offshore oil transportation, the consumption of hydrocarbons has increased greatly, and the resulting offshore oil pollution has fully attracted public attention. At present, oil-absorbing materials are commonly used to deal with oil spill pollution. Natural inorganic materials, natural fibers and synthetic polymer materials can be used as oil-absorbing materials. Natural inorganic materials include bentonite, silica, lime, activated carbon, etc. Natural fibers include pulp, coconut shell, cotton, straw, etc. Synthetic polymer materials include polypropylene, polystyrene, polyurethane foam, etc. Among them, natural inorganic materials have...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F1/40
Inventor 那平李丹王娜白云刘妍君
Owner TIANJIN UNIV
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