首页> 外文期刊>Chemical and Biochemical Engineering Quarterly >Recovery of Acrylic Acid Using Calcium Peroxide Nanoparticles: Thermodynamics and Continuous Column Study
【24h】

Recovery of Acrylic Acid Using Calcium Peroxide Nanoparticles: Thermodynamics and Continuous Column Study

机译:使用过氧化钙纳米粒子的回收丙烯酸:热力学和连续柱研究

获取原文
获取原文并翻译 | 示例
获取外文期刊封面目录资料

摘要

The thermodynamic parameters (Delta G degrees, Delta H degrees, and Delta S degrees) for adsorption of acrylic acid on CaO2 nanoparticle were estimated in the temperature range of 300.15-313.15 K, which helps to evaluate the feasibility of adsorption process, nature of adsorption process, and affinity of adsorbent toward solute molecule. A dynamic adsorption study in a fixed-bed column was performed using CaO2 nanoparticle for the recovery of acrylic acid from aqueous stream. The breakthrough curves of adsorption system were obtained for different process variables, such as initial acrylic acid concentration (2882-7206 mg L-1), flow rate (5-9 mL min(-1)), and bed height (10-20 cm). The bed-depth service time model, Thomas model, Yoon-Nelson model, and deactivation kinetic model were applied to the experimental data to predict the column performance. The data were in good agreement with the deactivation kinetic model. The presented results may be useful for the design of adsorption system using nanoparticles, which can be further extended to other systems.
机译:在CaO2纳米粒子上吸附丙烯酸的热力学参数(Delta g型,ΔH度和δ)估计在300.15-313.15k的温度范围内,有助于评估吸附过程的可行性,吸附性质吸附剂对溶质分子的方法和对吸附剂的亲和力。使用CaO2纳米粒子进行固定床柱中的动态吸附研究,用于从含水流中恢复丙烯酸。获得吸附系统的突破性曲线对于不同的工艺变量,例如初始丙烯酸浓度(2882-7206mg L-1),流速(5-9mL min(-1))和床高(10-20厘米)。床深度服务时间模型,托马斯模型,Yoon-Nelson模型和停用动力学模型应用于实验数据以预测列性能。数据与停用动力学模型很好。所呈现的结果对于使用纳米颗粒的吸附系统的设计可用于设计,其可以进一步扩展到其他系统。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号