High-performance straw fiber oil-absorbing material, as well as preparation method and application thereof

An oil-absorbing material, straw fiber technology, applied in chemical instruments and methods, other chemical processes, adsorption water/sewage treatment, etc., can solve the problems of low recycling performance, low saturated oil absorption capacity, poor oil-water selectivity, etc. Significant cost and environmental protection, high oil absorption performance, low cost effect

Active Publication Date: 2017-07-14
CHINA NAT PETROLEUM CORP SAFETY & ENVIRONMENTAL TECH RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] CN1375347A discloses a preparation method of fiber oil-absorbing agent, which is prepared by directly modifying straw with acid anhydride, and its oil-absorbing ratio reaches 20-30 times, but the oil-absorbing rate is low
CN103143326A discloses a fiber-based oil-absorbing material. First, sodium hydroxide and sodium hypochlorite are used to pretreat corn stalks to extract cellulose, and then acetic anhydride is used to hydrophobically modify

Method used

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  • High-performance straw fiber oil-absorbing material, as well as preparation method and application thereof
  • High-performance straw fiber oil-absorbing material, as well as preparation method and application thereof
  • High-performance straw fiber oil-absorbing material, as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0076] Example 1

[0077] This embodiment provides a method for modifying rice straw using ethyl acetate as a solvent and palm wax as a hydrophobizing agent to obtain a rice straw fiber oil-absorbing material, and this embodiment also absorbs oil from the rice straw fiber prepared. The oil absorption, water absorption and oil retention performance of the material were tested:

[0078] Wherein, the preparation method of rice straw fiber oil-absorbing material includes the following steps:

[0079] (1) Preparation of hydrophobizing agent solution: Take 0.5 g of palm wax into a 500 mL beaker, add 200 mL of ethyl acetate, and heat and dissolve in a constant temperature water bath at 80°C for 30 minutes to obtain a hydrophobing agent with a mass concentration of 0.0025 g / ml Solution.

[0080] (2) Straw pretreatment: Take 40g rice straw powder (850μm-1cm) in an autoclave, add 800mL deionized water, raise the temperature in the reactor to 200℃, pretreat it for 15min, reduce the temperature ...

Example Embodiment

[0090] Example 2

[0091] This embodiment provides a method for preparing corn stalk fiber oil-absorbing material by modifying corn stalks using ethyl acetate as the solvent and paraffin wax as the hydrophobic agent, and the corn stalk fiber oil-absorbing material prepared in this embodiment The oil absorption, water absorption and oil retention performance of the product were tested:

[0092] Wherein, the preparation method of corn stalk fiber oil-absorbing material includes the following steps:

[0093] (1) Preparation of hydrophobizing agent solution: Take 1g of paraffin wax into a 500mL beaker, add 300mL ethyl acetate, and heat and dissolve in a constant temperature water bath at 80°C for 30 minutes to obtain a hydrophobing agent solution with a mass concentration of 0.0033g / mL.

[0094] (2) Straw pretreatment: Take 20g corn stalk powder (250μm-850μm) in the autoclave, add 800mL deionized water, raise the temperature in the reactor to 180℃, pretreat it for 30min, reduce the temper...

Example Embodiment

[0100] Example 3

[0101] This embodiment provides a method of using carbon tetrachloride as a solvent and palm wax as a hydrophobic agent to modify wheat straw to obtain an oil-absorbing material, and this embodiment also provides a method for preparing an oil-absorbing material for wheat straw fiber The oil absorption, water absorption and oil retention performance were tested:

[0102] (1) Preparation of hydrophobizing agent solution: Put 0.8g palm wax into a 500mL beaker, add 100mL carbon tetrachloride, and heat and dissolve it in a constant temperature water bath at 70°C for 20 minutes to obtain a hydrophobe with a mass concentration of 0.008g / mL 剂solution.

[0103] (2) Straw pretreatment: Take 30g of wheat straw powder (150μm-250μm) in the autoclave, add 600mL deionized water, raise the temperature in the reactor to 210℃, pretreat for 15min, reduce the temperature and release the pressure, then open The reaction kettle is filtered and washed to obtain the solid filter residue,...

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Abstract

The invention provides a high-performance straw fiber oil-absorbing material, as well as a preparation method and application thereof. The straw fiber oil-absorbing material is prepared by using straws as a raw material through hydrothermal pretreatment and water repellent agent impregnation modification, wherein the straw fiber oil-absorbing material comprises 0.5-10 percent of water repellent agent based on 100 percent of total weight. The invention further provides a method for preparing the high-performance straw fiber oil-absorbing material and application of the high-performance straw fiber oil-absorbing material in water body oil-spilled pollution treatment. The high-performance straw fiber oil-absorbing material is prepared by utilizing low-price and easily available natural plant fiber-straws as the raw material through simple hydrothermal pretreatment and water repellent modification method. Compared with a chemically synthesized oil-absorbing material, the oil-absorbing material has the advantages of low cost, biodegrading availability and excellent oil absorbing performance.

Description

technical field [0001] The invention relates to a high-performance straw fiber oil-absorbing material and its preparation method and application, and belongs to the technical field of water body oil spill pollution treatment and new material application in environmental protection. Background technique [0002] In recent years, with the development of the petroleum industry, the use of petroleum and its products has been increasing. However, in the process of its exploitation, refining, storage, transportation and use, due to various accidents, entering the ocean, rivers, lakes and other water environment will cause water pollution. The severe pollution has posed a major threat to the ecological environment and people's life and health. These oil spills form an oil film covering the water surface, which not only wastes precious oil resources, but also blocks the process of water-air exchange, affects the biological chain cycle, destroys the ecological balance of the water bo...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28
Inventor 刘昌见储胜利王磊栾国华孙文勇石明杰李娜
Owner CHINA NAT PETROLEUM CORP SAFETY & ENVIRONMENTAL TECH RES INST CO LTD
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