来自非挥发性燃料的可再生通过反应性闪光挥发的可再生
J R Salge1, B J Dreyer, P J Dauenhauer
1Department of Chemical Engineering and Material Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, MN 55455, USA.
概括
像大豆油这样的非挥发性燃料可以通过催化部分氧化在不到50毫秒的时间内转化为. 这个过程避免了碳在-催化剂上形成,使得高效的气生产.
科学领域:
- 催化剂是一种催化剂.
- 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
背景情况:
- 非挥发性燃料需要高效的转化方法来生产气.
- 催化剂上的碳沉积阻碍了燃料转化过程.
- 短接触时间反应器是快速化学转换所需的.
研究的目的:
- 研究非挥发性燃料的快速蒸发和催化部分氧化.
- 为了在毫秒内实现高产量的气生产.
- 为了防止因碳形成而导致催化剂失活.
主要方法:
- 使用热的-催化剂表面.
- 使用热解与催化氧化相结合.
- 在高冲击速度下处理燃料滴 (大豆油,葡萄糖水).
主要成果:
- 从非挥发性燃料中获得高产量,在<50 ms.
- 由于外热反应,催化剂表面保持在800°C以上 (约. 1 兆瓦/平方米).
- 防止了催化剂上脱活碳层的形成.
结论:
- 催化部分氧化使得从非挥发性燃料中快速,高产的生产成为可能.
- -催化剂有效地将燃料转化为和小分子,而无需焦化.
- 这种方法为高效的气发电提供了一个有前途的途径.
相关概念视频
Batteries and Fuel Cells
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
Thermal and Photochemical Electrocyclic Reactions: Overview
Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
Photoluminescence: Fluorescence and Phosphorescence
Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
A pair of electrons in a...
Flame Photometry: Overview
Flame photometry, also known as flame emission spectrometry, is a technique used for the qualitative and quantitative analysis of elements present in a sample using a flame as the source of excitation energy. The concept of flame photometry was realized in the early 1860s by Kirchhoff and Bunsen, who discovered that specific elements emit characteristic radiation when excited in flames. The first instrument developed for this purpose was used to measure sodium (Na) in plant ash using a Bunsen...
Microbial Fuel Cells
Microbial fuel cells (MFCs) are bioelectrochemical devices that generate electricity by exploiting the metabolic processes of electrogenic bacteria. These systems provide a renewable energy source and serve as an innovative method for treating organic waste, such as wastewater.A typical MFC consists of two chambers: an anoxic (oxygen-free) compartment that houses the bacteria and an oxic (oxygen-rich) compartment that contains oxygen as the terminal electron acceptor. Many MFCs use proton...
Biofuels
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...


