搜索结果: 1-15 共查到“工学 gasification”相关记录19条 . 查询时间(0.051 秒)
Transformation of chlorine in NaCl-loaded Victorian brown coal during the gasification in steam
chlorine gasification volatile-char interactions XANES
2014/4/28
This study is to examine the changes in Cl volatilizations and chemical forms in NaCl-loaded Victorian brown coal during gasification in steam at 800 ℃ using Cl K-edge X-ray absorption near-edge struc...
阐述了分布式冷热电联供系统的概念及特点，介绍了生物质气化系统的原理，并探讨了生物质气化冷热电联供系统的几种应用形式及各自的优缺点，分析了我国发展生物质气化冷热电联供系统的优势及面临的问题。最后指出生物质气化冷热电联供系统可实现能量的梯级利用，具有良好的社会、经济和环境效益，为高效综合利用我国生物质资源的重要途径之一。
生物质气化过程的热力学模型研究（Research on Thermodynamic Model of Biomass Gasification Process）
生物质 气化 热力学 平衡模型
2010/12/28
在综合考虑系统散热和碳不完全转化等因素的情况下，基于物质平衡、能量平衡和化学反应平衡建立了生物质气化过程热力学模型，并用Newton-Raphson方法对模型进行了求解。模型计算结果与文献数据基本吻合。最后，利用所建模型分析了空气预热温度、原料含水率、反应温度、空气当量比对气体成分、热值等指标的影响程度。
双循环流化床生物质解耦气化实验（Dual Fluidized Bed Biomass Decoupled Gasification Experiments）
生物质 解耦气化 双循环流化床
2010/12/28
对两种常见的生物质（玉米秸秆和稻壳）进行了能量平衡分析和计算，结果表明其中固定碳的燃烧足以维持挥发份热解所需能量。通过冷态实验得到了双床系统的循环和压力分布情况，证明可以通过该装置实现循环灰的传递并避免了燃烧炉和气化炉气体的掺混。生物质颗粒料的热态气化实验表明，可以由冷态平稳切换到气化工况并实现稳定运行，气化产生热值可以达到7MJ/Nm3。
PYROLYSIS AND GASIFICATION OF MUNICIPAL AND INDUSTRIAL WASTES BLENDS
gasification three-stage gasifier thermodynamics
2010/12/2
Gasification could play an important role in the treatment of municipal solid wastes. However, some problems may arise when using unsorted materials due to the difficulties of obtaining a feed with co...
Rock massif observation from underground coal gasification point of view
underground coal gasification brown coal deposits geological conditions
2009/10/23
The Underground coal gasification (UCG) of the coal seams is determined by suitable geological structure of the area. The assumption of the qualitative changes of the rock massif can be also enabled b...
UTILIZATION OF GASES FROM BIOMASS GASIFICATION IN A REFORMING REACTOR COUPLED TO AN INTEGRATED PLANAR SOLID OXIDE FUEL CELL: SIMULATION ANALYSIS
hydrogen chemical reactor fuel cell
2009/10/13
One of the high-efficiency options currently under study for a rational employment of hydrogen are fuel cells. In this scenario, the Integrated Planar Solid Oxide Fuel Cell (IP-SOFC) is a new concept ...
SIMULATION OF BIOMASS GASIFICATION IN FLUIDIZED BEDS USING COMPUTATIONAL FLUID DYNAMICS APPROACH
BIOMASS GASIFICATION FLUIDIZED BEDS COMPUTATIONAL FLUID DYNAMICS APPROACH
2009/10/13
A model was developed for the simulation of physical and chemical processes occurring during biomass gasification inside a fluidized bed. The commercial CFD software "FLUENT" was employed for the desc...
PRESSURISED FLUIDISED BED GASIFICATION EXPERIMENTS OF BIOMASS AND FOSSIL FUELS
fluidised bed gasification simulation biomass
2009/10/13
Gasification of biomass and older fossil fuels, like brown coal, hot gas cleanup using a ceramic filter and combustion of LCV product gas in a combustor was performed using a 1.5 [MWth] test rig (PFBG...
GASIFICATION IN A CFB-REACTOR - A SIMPLE AND ECONOMIC WAY OF CO-FIRING RENEWABLE FUELS IN EXISTING POWER PLANTS
GASIFICATION CFB-REACTOR CO-FIRING RENEWABLE FUELS EXISTING POWER PLANTS
2009/10/13
In 1997 AE Energietechnik implemented in the course of a EU-THERMIE funded demonstration project, together with some partners, a biomass gasifier in Zeltweg, Austria. This plant operates as a Circulat...
BIOMASS GASIFICATION IN SMALL-SCALE UNITS FOR THE USE IN AGRICULTURE AND FORESTRY IN FR YUGOSLAVIA
BIOMASS GASIFICATION SMALL-SCALE UNITS AGRICULTURE FORESTRY FR YUGOSLAVIA
2009/10/13
This paper is the survey of the state-of-the art and prospects of biomass gasification in FR Yugoslavia. Combustion in small-scale units is the most common at present. Potentials of available biomass ...
在分析焦油形成机理和裂解条件的基础上提出了一种高效的低焦油生物质气化技术。该技术将生物质低温热解和高温气化两个过程分开进行，且要求热解发生于350～500℃之间，气化温度控制在1000℃左右，气化剂当量比大约为0.3。分步气化保证了焦油强化裂解的高温条件，使其充分裂解为小分子不凝性可燃气体，从而降低了可燃气体中基础焦油质量浓度，提高了燃气品质。该工艺可使燃气中基础焦油质量浓度降低到20mg/m3以...
稻秆气化焦油催化裂解脱除过程模型改进与优化（Improving and Optimizing the LS-SVM Model of the Rice Straw Gasification Tar Removal Process by Catalytic Cracking）
稻秆 气化 焦油催化裂解 模型改进 优化
2010/4/1
对所建立的稻秆气化焦油催化裂解脱除过程LS-SVM模型进行了改进，将原模型的核函数由高斯径向基RBF核函数改为线性lin核函数，并对改进以后的模型进行了验证，在此基础上对稻秆气化焦油催化裂解过程作了优化。结果表明，改进以后的模型具有更好的模拟效果和泛化能力，且当催化裂解温度为949.1356℃，气相停留时间为0.9819s时，焦油催化裂解率达到最大值98.6877%。 The LS-SVM mod...
Gasification of Cellulose over Rh/CeO2/SiO2 Catalysts: Combustion of Coke and Reforming of Tar
Cellulose Biomass Gasification Rhodium catalyst Cerium oxide catalyst Synthesis gas
2009/7/24
The conventional methods for biomass gasification to hydrogen and synthesis gas are carried out at high temperature. Recently Rh/CeO2 based catalysts has been shown to be very effective for the catal...
Syngas Production from Gasification of Biomass over Rh/CeO2/SiO2 Catalyst: Pyrogasification, Steam Reforming and CO2 Reforming
Biomass Cedar Pyrogasification Steam reforming Rhodium catalyst
2009/7/23
Conventional methods for biomass gasification to hydrogen and synthesis gas are carried out at high temperature (1073-1673 K). Recently Rh/CeO2/SiO2 catalyst has been shown to be very effective for t...