通过高剪切混合进行氧化脱硫的创新方法:对西欧芬的应用进行优化研究
Micah M Haboc1, Nathaniel P Dugos1, Angelo Earvin Sy Choi1
1Department of Chemical Engineering, De La Salle University, 2401 Taft Ave., Manila 0922, Philippines.
ACS omega
|October 14, 2024
概括
这项研究优化了混合辅助氧化脱硫 (MAOD) 来从替代燃料中去除硫. 污泥衍生的Fe ((VI) 有效地降低了热解油中的甲 (BT),以满足环境标准.
科学领域:
- 环境化学环境化学
- 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:
- 基于石油的燃料对环境有不利的影响.
- 来自废轮胎的热解油是一种潜在的替代燃料,但含有高硫含量,特别是甲 (BT).
- 台湾和菲律宾对工业燃料的硫含量有严格的限制.
研究的目的:
- 研究和优化混合辅助氧化脱硫 (MAOD) 过程,以从模型燃料中去除BT.
- 为了确定MAOD的最佳工艺条件,使用污泥衍生的Fe (VI) 作为氧化剂.
- 为了评估优化MAOD过程对高硫热解油的有效性.
主要方法:
- 在模型燃料中氧化脱硫BT,使用原始Fe (VI) 氧化剂.
- 使用Box-Behnken设计的响应表面方法来研究独立变量:混合速度,相移转剂 (PTA) 量,Fe (VI) 度和混合温度.
- 统计分析以确定重要的变量和最佳条件.
主要成果:
- 硫的转化增加了更高的Fe (VI) 度和PTA数量,以及更低的混合速度和温度.
- 在实验运行中,BT转换为BT硫的转换率从17%到64%不等.
- 在最佳条件下,模型燃料的硫转化率为88%,热解油的硫减少率为55%.
结论:
- 污泥衍生的Fe (VI) 对在模型燃料和热解油中BT的MAOD有效.
- 优化的MAOD工艺在温和条件下运行,并满足台湾和菲律宾工业加热油的硫要求.
- 这项研究证明了一种可行的方法,可以从废旧轮胎中生产更清洁的替代燃料.
相关概念视频
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
9.9K
Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.
9.9K
Sample Preparation for Analysis: Advanced Techniques
302
Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
302
Preparation and Reactions of Thiols
6.0K
Thiols are prepared using the hydrosulfide anion as a nucleophile in a nucleophilic substitution reaction with alkyl halides. For instance, bromobutane reacts with sodium hydrosulfide to give butanethiol.
6.0K
Sulfur Assimilation
1
Sulfur is an essential element in biological systems, contributing to synthesizing key biomolecules, including amino acids such as cysteine and methionine, and cofactors such as coenzyme A and biotin. Microorganisms primarily assimilate sulfur as sulfate (SO₄²⁻) from the environment, which must undergo a series of biochemical transformations before it can be incorporated into cellular components. As sulfate is highly oxidized, it must undergo assimilatory sulfate reduction to...
1
Preparation and Reactions of Sulfides
4.7K
Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
4.7K


