概述生物炭生产技术和在钢铁工业中的应用
Segun E Ibitoye1,2,3, Chanchal Loha4, Rasheedat M Mahamood5,6
1Department of Mechanical Engineering, Faculty of Engineering and Technology, University of Ilorin, P. M. B. 1515, Ilorin, Nigeria. ibitoye.s@unilorin.edu.ng.
Bioresources and bioprocessing
|July 3, 2024
概括
本综述探讨了生物炭生产方法及其在钢铁行业 (ISI) 的使用情况. 虽然生物炭为环境带来了好处,并且具有比煤炭更优越的性能,但其高成本和供应链挑战给可持续制造业的广泛采用带来了障碍.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 可持续的工业实践需要将创新与环境责任相结合.
- 生物质热化学转化产生的生物炭为优化工业流程和减少生态影响提供了潜在的解决方案.
- 钢铁行业 (ISI) 是全球排放的重要贡献者,需要可持续的替代方案.
研究的目的:
- 审查生物炭生产方法并评估它们在钢铁工业 (ISI) 中的潜在应用.
- 探索将生物炭整合到ISI运营中的技术,经济和可持续性影响.
- 评估生物炭作为钢铁制造中传统材料的替代品的可行性.
主要方法:
- 对生物炭生产技术的科学文献的审查,重点是缓慢的热解和热水碳化.
- 与煤炭和焦炭相比,分析生物炭的物理和化学特性 (加热值,多孔性,表面积).
- 检查经济因素,包括生产成本,原料供应和市场定价.
- 对大规模生物炭实施的供应链考虑的评估.
- 在高炉-基本氧炉 (BF-BOF) 运行中评估潜在的减排机会.
主要成果:
- 缓慢的热解和热水碳化是有效的生物炭生产方法,产生25-90%的生物炭.
- 生物炭比煤炭和焦炭具有优越的特性,包括更高的加热值 (30-32 MJ/kg),更大的多孔性 (58.22%) 和更大的表面积 (113 m2/g).
- 然而,生物炭的加入可以降低煤炭-生物炭混合物的流动性.
- 更高的生产和替代燃料成本带来了重大的经济挑战.
- 经济可行性是高度可变的,取决于原料,规模,位置和定价.
结论:
- 由于其有利的特性,生物炭为提高钢铁行业 (ISI) 的可持续性提供了一个有希望的途径.
- 必须解决经济和供应链方面的重大挑战,才能广泛采用.
- 尽管存在障碍,但生物炭技术为减少BF-BOF运营中的排放提供了机会.
- 进一步的研究和开发对于实现生物炭在可持续制造中的潜力至关重要.
相关概念视频
01:26Steel Manufacturing
448
Steel manufacturing is a multi-stage process that begins by smelting iron ore into cast iron in a blast furnace. This initial stage involves layering iron ore with coke, a type of fuel, and crushed limestone within the furnace. The coke is ignited with a high volume of air, leading to the creation of carbon monoxide, which acts to reduce the iron ore to pure iron.
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
448
02:49Corrosion
24.0K
The degradation of metals due to natural electrochemical processes is known as corrosion. Rust formation on iron, tarnishing of silver, and the blue-green patina that develops on copper are examples of corrosion. Corrosion involves the oxidation of metals. Sometimes it is protective, such as the oxidation of copper or aluminum, wherein a protective layer of metal oxide or its derivatives forms on the surface, protecting the underlying metal from further oxidation. In other cases, corrosion is...
24.0K
01:17Steel Fastening Techniques
144
Steel sections can be joined together through various fastening techniques including riveting, bolting, and welding, each suitable for different structural requirements and conditions.
Rivets are cylindrical steel fasteners with a specially designed head. During application, rivets are heated until white-hot and then inserted through pre-drilled holes in the steel sections. A pneumatic hammer is used to shape the exposed end into a second head, securing the sections together.
Bolting is another...
Rivets are cylindrical steel fasteners with a specially designed head. During application, rivets are heated until white-hot and then inserted through pre-drilled holes in the steel sections. A pneumatic hammer is used to shape the exposed end into a second head, securing the sections together.
Bolting is another...
144
01:08Sample Preparation for Analysis: Advanced Techniques
318
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...
318
01:18Mechanical Characteristics of Steel
559
The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
559
01:24Structural Steel Products
194
Structural steel products are created within a structural mill. The process begins with a beam blank that is reheated and then fed through a series of rollers. These rollers progressively shape the metal into its final form. Adjusting the spacings between the rollers allows for the production of different sections with the same nominal dimensions.
Once shaped, the steel's final form emerges as a continuous length, which is then segmented by a hot saw into manageable pieces. These segments...
Once shaped, the steel's final form emerges as a continuous length, which is then segmented by a hot saw into manageable pieces. These segments...
194