本文選題：脫碳 + 動態(tài)特性　； 參考：《中國電機(jī)工程學(xué)報》2014年08期

【摘要】：由于電力需求的波動,受上游碳捕集電廠負(fù)荷變化的影響,胺法脫碳系統(tǒng)本質(zhì)上是一個動態(tài)系統(tǒng)。但絕大多數(shù)關(guān)于胺法脫碳系統(tǒng)的研究是基于穩(wěn)態(tài)運(yùn)行方式展開的,對碳捕集系統(tǒng)動態(tài)研究還處于起步階段。文中基于一個典型的燃煤電廠胺法脫碳裝置,應(yīng)用Aspen Dynamics軟件建立胺法脫碳系統(tǒng)動態(tài)模型。研究了帶基本控制結(jié)構(gòu)胺法脫碳系統(tǒng)在再沸器熱功率、煙氣流量及煙氣組分階躍變化時,吸收和再生過程的動態(tài)響應(yīng)特性。結(jié)果表明,在階躍擾動下,CO2脫除率發(fā)生階躍變化。為了實(shí)現(xiàn)固定的CO2脫除率,提出2種比例控制策略,根據(jù)煙氣處理量及組分濃度變化,分別通過調(diào)節(jié)貧液流量及貧液CO2擔(dān)載量來保持固定的CO2脫除率。動態(tài)分析表明,在煙氣流量及組分階躍變化時,2種控制策略下的胺法脫碳系統(tǒng)均可以實(shí)現(xiàn)固定的CO2脫除率。
[Abstract]:Because of the fluctuation of power demand and the influence of the load change of the upstream carbon capture power plant, the amine decarbonization system is essentially a dynamic system. However, most of the researches on amines decarbonization system are based on steady operation mode, and the dynamic study of carbon capture system is still in its infancy. Based on a typical amine decarbonization unit in coal-fired power plant, a dynamic model of amine decarbonization system is established by using Aspen Dynamics software. The dynamic response characteristics of the absorption and regeneration process of the amine-decarburized system with basic control structure were studied when the reboiler heat power, flue gas flow rate and flue gas composition changed step by step. The results showed that the removal rate of CO _ 2 changed step by step under the step disturbance. In order to achieve a fixed CO2 removal rate, two proportional control strategies were proposed. According to the change of flue gas handling capacity and component concentration, the fixed CO2 removal rate was maintained by adjusting the lean liquid flow rate and the CO2 loading capacity respectively. The dynamic analysis shows that the amine-decarburized system can achieve the fixed CO2 removal rate when the flue gas flow rate and the component step change are changed.
【作者單位】： 清華大學(xué)熱科學(xué)與動力工程教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：國際科技合作計劃項目(2013DFB60140)~~
【分類號】：X773

【共引文獻(xiàn)】

相關(guān)期刊論文 前9條

1 李元媛;張娜;蔡睿賢;;控制CO_2的太陽能/甲烷互補(bǔ)系統(tǒng)熱力經(jīng)濟(jì)性研究[J];工程熱物理學(xué)報;2013年10期

2 徐鋼;丁捷;楊勇平;李守成;劉文毅;宋曉娜;;針對現(xiàn)役機(jī)組的CO_2捕集系統(tǒng)優(yōu)化集成[J];工程熱物理學(xué)報;2014年01期

3 張克舫;劉中良;王遠(yuǎn)亞;;基于，

本文編號：1919176