The Next Generation of Activated Carbon Adsorbents for the Pre-Combustion Capture of CO2

该研究的目的是开发活性炭吸附剂和系统模型，以提高IGCC过程的效率，灵活性和可操作性。由树脂前体制备的新型活性炭（AC）吸附剂具有定制以控制其CO2吸附容量和等温线形状的能力。因此，在成本和灵活性方面，它们提供了在整体联合循环气化（IGCC）工艺中用于燃烧前捕集CO2的溶剂基系统的显著优势。该研究将侧重于从根本上了解树脂衍生碳的孔隙率和表面功能性，无论是珠粒形式还是整体形式，在水分和其他气体存在的实际工艺条件下控制其CO2吸附。在IGCC中可能实现高CO2去除，将需要在不同压力下操作的多于一个床。因此，还将研究在CO2的低分压（<5巴）下显示高吸收的吸附剂。实际上，在低分压下显示出高吸收的吸附剂也将应用于燃烧后捕集和在炼铁期间从高炉煤气中选择性地除去CO2。同时，该项目还将考虑用于CO2捕集的AC吸附剂的独特性能如何提高IGCC电厂的可操作性。将在系统的基础上对通过吸附去除CO2的不同水平的排放、资源需求和成本进行比较，允许设计不同的设计方案和控制策略，以最大限度地减少CO2捕获对整体工艺效率的影响。在研究计划中，第一个主题（各种空调的功效）的结果将用作第二个主题（IGCC电厂性能建模）的设计基础。该提案汇集了来自五个学术机构的平衡专业知识，以增加我们对用于燃烧前捕集的AC吸附剂的理解，以及它们将如何提高IGCC工厂的可操作性和灵活性。诺丁汉和伯明翰的CO2吸附剂和发电厂控制能力得到国际认可，煤炭化学研究所（ICC）和清华大学的优势互补，这使得合作伙伴联合收割机结合其优势来解决IGCC中更有效的CO2捕集问题及其对整个工厂运行的影响是合乎逻辑的。在中国合作伙伴方面，清华大学对IGCC过程进行了10多年的研究，并开发了第一个完整的简化IGCC动态数学模型和仿真程序。ICC CAS参与了气化的许多方面，并已与UoN合作研究燃烧后捕获的活性炭（ICUK奖）。关于这一呼吁，本提案涉及：（一）基于材料进步的新技术;（二）建模和模拟以及采用先进材料的捕集厂

The vision of the proposed research is to develop activated carbon adsorbents and system models to improve the efficiency, flexibility and operability of IGCC processes . Novel activated carbon (AC) adsorbents prepared from resin precursors have the ability to be tailored to control both their CO2 adsorption capacity and isotherm shape. As a result, they offer significant advantages over solvent-based systems for the pre-combustion capture of CO2 in integrated combined cycle gasification (IGCC) processes in terms of cost and flexibility. The research will focus on gaining a fundamental understanding of how the porosity and surface functionality of resin-derived carbons, both in bead and monolith forms, controls their CO2 adsorption under actual process conditions in the presence of moisture and other gases. It is likely to achieve high CO2 removals in IGCC, more than one bed will be needed operating at different pressures. As a result adsorbents displaying high uptakes at low partial pressures (<5 bar) of CO2 will also be investigated. Indeed adsorbents displaying high uptakes at low partial pressures will also find applications in post-combustion capture and selectively removing CO2 from blast furnace gas during iron making. In parallel, the project will also consider how the unique performance of the AC sorbents for CO2 capture will improve the operability of IGCC power plants. Comparisons of emissions, resource requirements and costs with varying levels on CO2 removal via adsorption will be made on a systematic basis allowing different design options and control strategies to be devised, in order to minimise the effects of CO2 capture upon the overall process efficiency. In the research programme, the results from the first theme on the efficacy of the various ACs will be used as the design basis in the second theme on modelling the performance of IGCC plants. The proposal brings the balanced expertise together from five academic institutes to increase our understanding of AC adsorbents for pre-combustion capture and how they will improve the operability and flexibility of IGCC plants. The internationally recognized capability for CO2 adsorbents and power plant control at Nottingham and Birmingham and the complementary stengths of the Institute Coal Chemistry (ICC) and Tsinghau Univeristy make it logical for the partners to combine their strengths to address more effective capture of CO2 in IGCC and the implications of this on overall plant operation. Regarding the Chinese partners, Tsinghua have studied the IGCC process for over 10 years and they have developed the first complete simplified IGCC dynamical mathematical model and simulation program). ICC CAS have been involved in may aspects of gasification and are already working with the UoN on active carbons for post-combustion capture (ICUK award). In relation to the Call, this proposal addresses both:(i) New technologies based on material advances(ii) Modelling and simulation and of capture plants employing the advanced materials