Adsorption Materials and Processes for Carbon Capture from Gas-Fired Power Plants: AMPGas
Adsorption Materials and Processes for Carbon Capture from Gas-Fired Power Plants: AMPGas
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DOI：
10.1021/acs.iecr.5b05015
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发表时间：
2016-04-06
影响因子：
4.2
通讯作者：
Brandani, Stefano
中科院分区：
文献类型：
--
作者：
Gibson, J. A. Arran;Mangano, Enzo;Brandani, Stefano
燃气发电厂燃烧后捕集的关键挑战与烟道气中的低CO2浓度（4-8%体积）有关。这意味着常规胺方法将导致相对高的能量损失，而新型吸附剂和吸附方法具有提高分离效率的潜力。需要高选择性吸附剂以在低分压下实现相对高的CO2吸收，这意味着分离过程应基于非常强的物理吸附或热再生的化学吸附。从工艺的角度来看，主要的挑战是开发具有快速热循环的高效分离工艺。在本报告中，我们详细概述了作为“燃气发电厂吸附材料和工艺”（AMPGas）项目一部分的新型材料和工艺开发背后的方法。从各种各样的材料测试的例子，并讨论了一个创新的实验室规模的12柱转轮吸附器系统的设计。提出了设计、表征和测试专门用于从稀流中捕获CO2的新型材料（沸石、含胺的MOFs、基于胺的二氧化硅、基于胺的活性炭和碳纳米管）的策略。
The key challenge in postcombustion capture from gas-fired power plants is related to the low CO2 concentration in the flue gas (4-8% by volume). This means that conventional amine processes will result in a relatively high energy penalty, whereas novel adsorbents and adsorption processes have the potential to improve the efficiency of separation. High-selectivity adsorbents are required to achieve relatively high CO2 uptake at low partial pressures, which means that the separation process should be based on either very strong physisorption or chemisorption with thermal regeneration. From the process point of view, the main challenge is to develop efficient separation processes with rapid thermal cycles. In this report we present a detailed overview of the methodology behind the development of novel materials and processes as part of the "Adsorption Materials and Processes for Gas-fired power plants" (AMPGas) project. Examples from a wide variety of materials tested are presented, and the design of an innovative bench-scale 12-column rotary wheel adsorber system is discussed. The strategy to design, characterize, and test novel materials (zeolites, amine-containing MOFs, amine-based silicas, amine-based activated carbons, and carbon nanotubes), specifically designed for CO2 capture from dilute streams is presented.