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[1]安文博,王来贵,陈鹤,等.响应曲面法优化表面活性剂改性低渗透煤体工艺[J].中国安全生产科学技术,2018,14(7):120-127.[doi:10.11731/j.issn.1673-193x.2018.07.018]
　AN Wenbo,WANG Laigui,CHEN He,et al.Technology optimization of surfactant for modification of low permeability coal by response surface methodology[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(7):120-127.[doi:10.11731/j.issn.1673-193x.2018.07.018]
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响应曲面法优化表面活性剂改性低渗透煤体工艺
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年7期
页码:
120-127
栏目:
职业安全卫生管理与技术
出版日期:
2018-07-31

文章信息/Info

Title:
Technology optimization of surfactant for modification of low permeability coal by response surface methodology
文章编号:
1673-193X(2018)-07-0120-08
作者:
安文博1; 王来贵1; 陈鹤2; 刘向峰1; 李喜林2; 陈强1
（1.辽宁工程技术大学 力学与工程学院，辽宁 阜新 123000；2. 辽宁工程技术大学 土木工程学院，辽宁 阜新 123000）
Author(s):
AN Wenbo1;  WANG Laigui1;  CHEN He2;  LIU Xiangfeng1;  LI Xilin2;  CHEN Qiang1
(1. School of Mechanics and Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China;2. School of Civil Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China)
关键词:
响应曲面法; 低渗透煤体; 表面活性剂; 改性; 工艺优化
Keywords:
response surface methodology;  low permeability coal;  surfactant;  modification;  technology optimization
分类号:
X936;TD713
DOI:
10.11731/j.issn.1673-193x.2018.07.018
文献标志码:
A
摘要:
为了改善我国煤层渗透性低、结构致密的特点，以提高煤层渗透性、减少煤层冲击性、防止瓦斯事故为目的，通过单因素实验初步确定表面活性剂改性低渗透煤体时SDS溶液质量浓度、浸泡时间和浸泡温度等因素对煤样孔隙率的影响，进一步采用Box-Behnken实验设计优化其工艺参数，并分析改性后煤样物相结构和微观结构。研究结果表明：表面活性剂改性低渗透煤体的最佳工艺条件是SDS溶液质量浓度为0.5 wt.%，浸泡时间为44 h，浸泡温度为40℃；该条件下煤的实际孔隙率为33.29%，与模型预测值33.37%非常接近，验证了响应曲面设计优化的有效性。改性后煤样碳酸盐矿物减少，硅酸盐矿物增加，内部有杂质残余；煤样表面凹凸不平，结构松散，孔隙增加，矿物解理面模糊不清，胶结面消失。
Abstract:
In order to improve the characteristics of coal seams in China with low permeability and dense structure, aiming at improving the permeability of coal seams, reducing the impact of coal seams, and preventing the gas accidents, the influence of mass concentration of SDS solution, soaking time and soaking temperature on the porosity of the coal samples when modifying the low permeability coal with the surfactant was determined preliminarily by the single factor experiments, then the technological parameters were optimized further by using the BoxBehnken experimental design, and the phase structure and micro structure of the coal samples after the modification were analyzed. The results showed that the optimum technological conditions for the modification of low permeability coal with the surfactant were as follows: the mass concentration of SDS solution was 0.5 wt.%, the soaking time was 44 h, the soaking temperature was 40 ℃, and the actual porosity of coal under these conditions was 33.29%, which was very close to the prediction value of the model as 33.37%, so the effectiveness of the optimization by the response surface design was verified. After the modification, the carbonate minerals of the coal samples reduced, the silicate minerals increased, and the residual impurities remained in the coal samples. The surface of the coal samples was uneven, the structure was loose, the pores increased, the mineral cleavage surface was unclear, and the adhesive surface disappeared.

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备注/Memo

备注/Memo:
国家自然科学基金项目（51474121，51274110）
更新日期/Last Update: 2018-08-09