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地瓜取氧气丰富的半孔碳吸收剂,用于去除硫酸硫化合物

Nilesh Mohan Khalse¹, Mahuya De²

¹Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India.

Environmental science and pollution research international

|February 26, 2025

概括

来自花生的半孔碳化合物被合成,用于高效的吸附性脱硫硫硫基化合物. 富含氧气的碳显示出卓越的性能,突出了它们在生产清洁燃料方面的潜力.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
吸附科学吸附科学

背景情况:

燃料中的硫酸硫化合物带来了环境挑战.
开发用于燃料脱硫的高效吸附剂至关重要.
农业废弃物的价值化,比如地贝,用于可持续材料,正在变得越来越重要.

研究的目的:

为吸附性脱硫而合成和特征地花外衍生的半孔碳.
研究碳化温度和氧气丰富对吸附性能的影响.
为了评估硫化脱硫效率的thiophene,benzothiophene,和dibenzothiophene.

主要方法:

在不同温度 (600-900°C) 下,用氧化物对地贝进行一步碳化.
酸处理以使吸附剂富含氧气.
在不同温度 (25-70°C) 下对硫化合物的吸附性研究.
动力和同热模拟 (伪二次和兰格穆尔).

主要成果:

在800°C (GN-800) 合成的半孔碳表现出最高的表面积 (1192 m2/g) 和孔积 (0.58 cm3/g).
所有合成的碳的吸附脱硫性能随着温度的增加 (25-70°C) 而有所改善.
富含氧气的吸附剂显示了显著更高的去除效率:97.7%的 thiophene, 93.8%的 benzothiophene,和90.2%的 dibenzothiophene在70°C.
吸附数据最适合伪二次动力学和兰格穆尔异热模型.
吸附剂表现出良好的稳定性,在5个吸附再生周期后,性能略有下降.

结论:

从地果中提取的中孔碳,特别是富含氧气的碳,是有效的吸附剂,用于去除硫基硫化合物.
优化的合成条件和表面修饰增强了吸附性脱硫能力.
这些可持续吸附剂显示出生产更清洁燃料的巨大潜力.

关键词:

酸基相互作用吸附方式吸附方式吸附方式生物质衍生出的半孔碳.脱硫处理脱硫处理富含氧气的丰富方法

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