部分煤气化空气预热燃煤联合循环发电系统(PGACC)技术方案研究

部分煤气化空气预热燃煤联合循环发电系统是一种把煤气化技术，常压流化技术与联合循环结合起来的洁净煤发电技术，它通过将压气机排气在常压流化床锅炉中进行预热，同时利用气化炉内的高温煤气使蒸汽过热，从而提高循环效率，它的发电效率比较高，系统比较简单，是一种新的洁净煤发电技术的选择。文章采用ASPEN PLUS软件对部分煤气化空气预热燃煤联合循环方案改造老电厂的多种技术方案进行计算并对技术方案作了初步研究。     

增压部分气化燃煤联合循环(PPG-CC) 发电系统热力性能分析

部分气化燃煤联合循环发电系统是目前具有发展前景的洁净煤发电技术之一。本文提出了将空气和蒸汽先经过高温预热再送入气化炉的部分气化联合循环系统新方案，对该方案进行了热力性能计算，并与常规的不预热空气／蒸汽的部分气化联合循环系统热力性能进行了分析比较。计算结果说明了高温预热空气／蒸汽的部分气化联合循环系统有利于提高煤气热值和循环系统效率，对于劣质煤以及生物质气化生成较高热值煤气也具有重要意义。     

新型近零排放煤气化燃烧利用系统

以CO2接受体法气化技术为基础构建了新型的近零排放煤气化燃烧利用系统。煤被加入压力循环流化床气化炉里以水蒸汽为气化介质进行部分气化产生H2、CO和CO2在以CaO作为接受体吸收CO2并放出气化反应所需的热量的同时，CO也通过水煤气变换反应被转化。气化过程所产生高纯度氢气供给固体氧化物燃料电池发电。煤经部分气化后所剩的低活性焦碳和吸收CO2后产生的CaCO2一起被送入循环流化床燃烧炉，焦炭和燃料电池所排出的舍氢尾气燃烧提供CaCO2分解所需的热量。燃烧炉产生的高浓度CO2与其他污染物(SOk、NOx等)一起经余热发电后综合处理，从而实现整个系统的近零污染物排放。经计算，以烟煤为燃料的系统发电效率可达65．5％左右。     

生物质气化联合循环发电技术的探讨

本文阐述了国内外BIGCC生物质气化联合循环发电技术的发展概况和关键技术,介绍了生物质和煤共同气化的特性,为我国生物质气化联合循环发电技术的商业化运行提供了指导。     

焦载热部分气化燃煤联合循环系统性能分析

文中提出的一种新型燃煤联合循环发电技术,载热部分气化联合循环技术,经近几年的研究及运行实验,得到不断完善。最近,作为这种系统的改进型式－－焦载热部分气化联合循环已被提出,其焦载热炉及气化炉部分已在清华电厂投建,并进行冷态调试。本文在载热循环基础上,通过改变煤成分等参数对焦载热系统进行分析,得出结论认为煤气质量及流率的影响对整个整合循环系统极为关键。     

整体煤气化燃气—蒸汽联合循环机组

整体煤气化蒸汽燃气联合循环机组（Integrated Gasification Combined-Cycle），简称IGCC发电技术，是煤气化和蒸汽联合循环的结合，是当今国际上正在兴起的先进的洁净煤（CCT）发电技术，其具有高效、低污染、节水、综合利用串高等优点。它由两大部分组成，即煤的气化与净化部分和燃气-蒸汽联合循环发电部分。     

生物质整体气化联合循环发电系统的发展现状

文章介绍了生物质整体气化联合循环发电系统（RIGCC）搜其关键技术和设备，阐述了目前出现的大型生物质整体气化联合循环发电系统示范工程的工艺过程和运行经验，对我国发展BIGCC技术的可行性进行了分析，并提出目前需要解决的关键技术问题。     

整体煤气化联合循环发电系统IGCC

<正>整体煤气化联合循环发电系统,是将煤气化技术和高效的联合循环相结合的先进动力系统。它由2大部分组成,即煤的气化与净化部分和燃气-蒸汽联合循环发电部分。在目前技术水平下,IGCC发电的净效率可达43%~45%,而污     

焦油主要组份在循环灰下催化裂解的实验研究

在以循环流化床锅炉循环灰为热载体，部分气化产生的半焦为锅炉燃料，煤气为燃气轮机燃料的煤的部分气化联合循环中，降低焦油产率，提高煤气产率是一个技术关键，以焦油的两种主要组份苯和甲苯为研究对象，利用固定床实验台实验研究了一种混煤形成的循环灰条件下的裂解反应特性，测定了裂解反应动力学参数，探讨了循环灰对焦油裂解的催化机理。实验结果表明，与石英砂条件相比，循环灰极大地促进了焦油的裂解程度，气态裂解产物总量     

整体煤气化联合循环IGCC

整体煤气化联合循环（IGCC—Integrated Gasification Combined Cycle）发电系统,是将煤气化技术和高效的联合循环相结合的先进动力系统。它由两大部分组成,即煤的气化与净化部分和燃气-蒸汽联合循环发电部分。第一部分的主要设备有气化炉、空分装置、煤气净化设备（包括硫的回收装置）,     

地下煤炭气化发电机组运行特性分析

地下煤气化的产物除用作矿区居民家用燃料,还用内燃机组进行了地下煤气化发电的工业性试验.运用     

整体煤气化联合循环(IGCC)发电技术介绍

整体煤气化联合循环（IGCC）发电技术是煤气化和蒸汽联合循环的结合,是当今国际正在兴起的一种先进的洁净煤（CCT）发电技术,具有高效、低污染、节水、综合利用好等优点。它的原理是：煤经过气化和净化后,除去煤气中99％以上的硫化氢和接近100％的粉尘,将固体燃料转化成燃气轮机能燃用的清洁气体燃料,以驱动燃气轮机发电,再使燃气发电与蒸汽发电联合起来。     

The Development of Coke Carried—Heat Gasification Coal—Fired Combined Cycle

INTRODUCTIONCoal is the main energy resource in China. Morethan 70% electric power is generated by coal-firedpower plants in the country. It will be continued to bedominant in next century. The need for new electricgenerating capacity is growing along with the growthof Chinese economy. Meanwhile, environment pollution caused by coal combustion is also concerned here.So, searching new technologies to burn coal cleanlyand efficiently to produce power is a very importanttask to the energy r…     

粉煤加压气化小型试验研究

煤气化技术是燃煤联合循环发电、煤化工、综合利用系统、近零排放系统中的核心技术。干煤粉加压氧气气化技术是煤气化技术发展的一个主流方向。介绍了国电热工研究院的干煤粉加压气化试验系统,以及干煤粉加压气化试验研究的过程和结果。试验结果达到了预期的目的,得到干煤粉加压气化过程的规律,并验证了试验系统在高压下的稳定性。     

Assessment of hydrogen and electricity co-production schemes based on gasification process with carbon capture and storage

Through gasification, a solid feedstock is partially oxidized with oxygen and steam to produce syngas which can be used for conversion into different valuable compounds (e.g. hydrogen) or to generate power in a combined cycle gas turbine (CCGT). Integrated gasification combined cycle (IGCC) is one of power generation technologies having the highest potential for carbon capture with low penalties in efficiency and cost.     

Thermodynamic Analysis and Conceptual Design for Partial Coal Gasification Air Preheating Coal-fired Combined Cycle

The partial coal gasification air pre-heating coal-fired combined cycle (PGACC) is a cleaning coal power system, which integrates the coal gasification technology, circulating fluidized bed technology, and combined cycle technology. It has high efficiency and simple construction, and is a new selection of the cleaning coal power systems. A thermodynamic analysis of the PGACC is carried out. The effects of coal gasifying rate, pre-heating air temperature, and coal gas temperature on the performances of the power system are studied. In order to repower the power plant rated 100 MW by using the PGACC, a conceptual design is suggested. The computational results show that the PGACC is feasible for modernizing the old steam power plants and building the new cleaning power plants.     

燃煤气的闭式STIG循环中气化系统能量转化效率的研究

针对燃煤气的闭式ＳＴＩＧ循环,给出气化系统能量转化效率的计算式,计算三种典型气化炉分别采用高温干法和常温湿法净化系统的能量转化效率,同时分析能量转化效率对整个循环系统效率的影响。     

Hybrid clean energy technologies for power generation from sub-bituminous coals: a case of 250 MW unit

Major re-thinking is required on the conventional pulverized fuel conversion route of power generation wherein the ash and mineral burden in coals is transported through the entire flow passage of the boiler. For high-ash fuels, this has to be contained and the boiler must be clear of all mineral matter. The two independent clean coal candidate technologies for efficiency enhancement and emission controls – ultra-supercritical cycle (USC) and integrated gasification with combined cycle (IGCC) – both have limitations in adaptation to high-ash coals. While the USC is limited by the steam temperature up to 600°C (commercial scale) (700°C pilot scale) and boiler tube failure risks, IGCC is limited to high-quality fuels like diesel, naphtha, etc. (commercial scale) and high-grade coals (pre-commercial scale). The hybridization of the two technologies in their current form (ultra-supercritical cycle with gasification conversion) and carbon capture and storage (CCS) together with solar energy (solar thermal and solar photovoltaic) integration presents possibilities for immediate application to low-grade sub-bituminous coals to achieve the clean technology goals. The energy efficiency of the hybrid system is around 44.45%, which is of the order of the USC with pulverized coal combustion. But the predominant benefits of a clean operation override. The benefits are reduction in CO₂ generation from 0.86 to 0.70 kg/kWh and reduction in ash expelled from 0.20–0.24 to 0.12–0.18 kg/kWh besides elimination of dispersion of ash around the power station and facilitating CCS.     

我国的燃气_蒸汽联合循环发电技术前景良好

针对我国能源结构和能源政策,指出燃气－蒸汽联合循环是提高发电效率和解决环境污染的重要途径,尤其是国际公认的最有发展前途的两种燃煤联合循环发电技术;ＩＧＣＣ和ＰＦＢＣ－ＣＣ。文中简要地介绍了这两种联合循环发电技术。