概括
闪热 伊利诺伊州的煤炭在中迅速将碳转化为有价值的碳化合物,如甲和乙. 这一过程有效地产生甲,乙和芳香化合物,重 formation形成最小.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
背景情况:
- 煤炭转化技术对于能源生产至关重要.
- 了解煤炭热解过程中的碳化合物形成对于优化工艺至关重要.
- 伊利诺伊州的煤炭在热化学转化过程中具有独特的特性.
研究的目的:
- 为了研究在高压气下,伊利诺伊州煤炭的快速热解.
- 量化特定碳化合物产品的产量,包括甲,乙和芳香物.
- 为了确定在快速加热过程中碳的命运及其分布在各种产品中.
主要方法:
- 在1秒内将伊利诺伊州煤炭的闪热加热到700°C.
- 在100大气压下在流动的中进行热解.
- 在峰值温度下控制蒸汽停留时间 (3秒).
主要成果:
- 14%的煤炭碳转化为甲.
- 7%的煤炭碳转化为乙.
- 10%的煤炭碳转化为,和 (BTX).
- 焦炭是主要剩余的固体产品.
- 沉重的焦油形成不到3%.
结论:
- 伊利诺伊州煤炭的快速高压处理是生产轻碳化合物的有效方法.
- 该过程有利于甲,乙和BTX芳香物的形成.
- 微小的重焦油形成表明更清洁的转化途径.
更多相关视频
11:28Biomass Conversion to Produce Hydrocarbon Liquid Fuel Via Hot-vapor Filtered Fast Pyrolysis and Catalytic Hydrotreating
Published on: December 25, 2016
10:27A Uniaxial Compression Experiment with CO2-Bearing Coal Using a Visualized and Constant-Volume Gas-Solid Coupling Test System
Published on: June 12, 2019
相关概念视频
Reduction of Alkenes: Catalytic Hydrogenation
Alkenes undergo reduction by the addition of molecular hydrogen to give alkanes. Because the process generally occurs in the presence of a transition-metal catalyst, the reaction is called catalytic hydrogenation.
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the surface of...
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the surface of...
Reduction of Benzene to Cyclohexane: Catalytic Hydrogenation
Unlike the easy catalytic hydrogenation of an alkene double bond, hydrogenation of a benzene double bond under similar reaction conditions does not take place easily. For example, in the reduction of stilbene, the benzene ring remains unaffected while the alkene bond gets reduced. Hydrogenation of an alkene double bond is exothermic and a favorable process. In contrast, to hydrogenate the first unsaturated bond of benzene, an energy input is needed; that is, the process is endothermic. This is...
