• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Development of a Pressure Swing Adsorption (PSA) Process for CO2 Capture From Flue Gas.
【24h】

Development of a Pressure Swing Adsorption (PSA) Process for CO2 Capture From Flue Gas.

机译：开发了用于从烟气中捕集CO2的变压吸附（PSA）工艺。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Reducing the anthropogenic CO2 emissions and lowering the concentration of greenhouse gases in the atmosphere has become one of the most important environmental issues of recent times. To this end, the development of a cost effective pressure swing adsorption (PSA) process, utilizing commercially available 13X zeolite as the adsorbent, is underway to remove and concentrate CO2 in the flue gas of a coal-fired power plant. This systematic development effort has been carried out so far at the bench scale. It has included the following studies that defined and validated this PSA process both experimentally and via a PSA process model. First, a unique 3-bed 7-step PSA cycle schedule was developed for this CO2-N2 separation by performing PSA process simulations using the in-house Dynamic Adsorption Process Simulator (DAPS). To validate the results from DAPS, a number of different experiments were carried out that included measuring equilibrium and kinetic (mass transfer) data for both CO2 and N2 on 13X zeolite. This data was used in DAPS to validate it against PSA process experiments obtained from a unique 1-bed PSA apparatus that mimics all the steps of the 3-bed 7-step cycle. DAPS was able to predict the results from these 1-bed experiments without adjusting any of the model parameters. To validate the 3-bed 7-step PSA cycle schedule experiments were also carried out in a unique multi-bed PSA system. This set of experiments proved that the 3-bed 7-step PSA cycle could indeed meet the DOE requirements of producing 95% CO 2 purity and 90% CO2 recovery from a 15% CO2 in N2 feed. Again, DAPS was able to predict the results from these 3-bed 7-step experiments without adjusting any of the model parameters. Overall, this work validated a unique PSA process at the bench scale for separating CO2 from the flue gas of a coal-fired power plant. This presentation will provide an overview of these experimental and modeling studies.
机译：减少人为的二氧化碳排放并降低大气中温室气体的浓度已成为近来最重要的环境问题之一。为此，目前正在开发一种经济有效的变压吸附（PSA）工艺，该工艺利用可商购的13X沸石作为吸附剂，以去除和浓缩燃煤电厂烟气中的CO2。迄今为止，已经在基准规模上进行了这种系统的开发工作。它包括以下研究，通过实验和通过PSA流程模型定义和验证了此PSA流程。首先，通过使用内部动态吸附过程模拟器（DAPS）进行PSA过程模拟，为此CO2-N2分离制定了独特的3床7步PSA循环时间表。为了验证DAPS的结果，进行了许多不同的实验，包括测量13X沸石上CO2和N2的平衡和动力学（传质）数据。将该数据用于DAPS中，以针对通过模拟3床7步循环的所有步骤的独特1床PSA设备获得的PSA过程实验进行验证。 DAPS能够预测这些1床实验的结果，而无需调整任何模型参数。为了验证3床7步PSA周期计划，还在独特的多床PSA系统中进行了实验。这组实验证明，三床7步PSA循环确实可以满足DOE要求，即从N2进料中的15％CO2产生95％CO 2纯度和90％CO2回收率。同样，DAPS能够预测这些3床7步实验的结果，而无需调整任何模型参数。总体而言，这项工作验证了在台式规模上用于从燃煤电厂烟气中分离CO2的独特PSA工艺。本演讲将概述这些实验和建模研究。

著录项

  • 作者

    Rahman, Md Atikur.;

  • 作者单位

    University of South Carolina.;

  • 授予单位 University of South Carolina.;
  • 学科 Chemical engineering.;Environmental engineering.
  • 学位 Ph.D.
  • 年度 2016
  • 页码 150 p.
  • 总页数 150
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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