Steam explosion and esterification modification of rice straw for oil spill absorption material

PENG Li; LIU Changjian; LIU Baijun; CHU Shengli; LUAN Guohua; PEI Yuqi

doi:10.11949/j.issn.0438-1157.20141734

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Steam explosion and esterification modification of rice straw for oil spill absorption material

更新时间：2025-12-10

- Steam explosion and esterification modification of rice straw for oil spill absorption material
- CIESC Journal Issue 5, Pages: 1854-1860(2015)
- 作者机构：
  
  1. 中国石油大学(北京)化学工程学院,北京,102249
  2. 中国石油安全环保技术研究院应急技术研究所,北京,102249
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20141734
  CLC： Q26
- Online First：05 May 2015，
  
  Published：05 May 2015
- 稿件说明：
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PENG Li, LIU Changjian, LIU Baijun, et al. Steam explosion and esterification modification of rice straw for oil spill absorption material[J]. CIESC Journal, 2015, (5): 1854-1860.
DOI：

PENG Li, LIU Changjian, LIU Baijun, et al. Steam explosion and esterification modification of rice straw for oil spill absorption material[J]. CIESC Journal, 2015, (5): 1854-1860. DOI： 10.11949/j.issn.0438-1157.20141734.

摘要

以水稻秸秆为原料进行蒸汽爆破-酯化改性制备溢油吸附材料。未改性水稻秸秆有一定的吸油能力

其饱和吸油倍率、吸水倍率分别为5.66 g·g-1

7.59 g·g-1。通过对水稻秸秆进行蒸汽爆破-酯化改性后

发现其亲油疏水性能得到显著改善。对酯化反应的影响因素进行系统考察

得到优化的改性条件为反应温度为80℃

催化剂对甲基苯磺酸酐浓度为0.75%

反应时间为6 h。改性后水稻秸秆吸油倍率为8.54 g·g-1

吸水倍率为0.10 g·g-1。对蒸汽爆破-酯化改性前后水稻秸秆材料进行BET、XRD以及FT-IR表征

发现爆破处理后材料的孔径增大;非结晶态以及乙酰基特征峰的出现说明水稻秸秆发生酯化改性反应。

Abstract

A natural organic oil spill adsorption material was developed by steam explosion and esterification modification of rice straw. The oil-absorption capacity and water-absorption capacity of the raw rice straw were 5.66 g·g-1 and 7.59g·g-1

respectively. The conditions of esterification modification of rice straw were optimized. The optimal reaction temperature

catalyst concentration and reaction time were 80℃

0.75%

6 h

respectively. The oil-absorption capacity and water-absorption capacity of the modified rice straw were 8.54 g·g-1 and 0.10 g·g-1

respectively. Furthermore

the rice straw before and after modification were characterized by BET

XRD

FT-IR. The modified rice straw had larger pore diameter after steam explosion

appearance of non-crystallizing state and acetyl group of characteristic peak after esterification

which proved the feasibility of esterification modification of rice straw.

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