钢铁行业的排放:趋势和驱动因素的全球分析
相关实验视频
Updated: Jul 12, 2025

08:32
Measurement of Outgassing Rates of Steels
Published on: December 13, 2016
11.6K
Jinjian Zhang1,2, Huizhong Shen1,2, Yilin Chen1,2,3
1Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
Environmental science & technology
|October 23, 2023
概括
钢铁和钢铁行业的发展
科学领域:
- 环境科学 环境科学
- 工业生态学 工业生态学
- 气候变化研究 气候变化研究
背景情况:
- 钢铁行业 (ISI) 对社会经济发展至关重要.
- 伊斯兰国是温室气体和空气污染物的重要来源,影响气候和健康.
- 历史排放数据和驱动因素对于有效的污染控制策略至关重要.
研究的目的:
- 在过去的60年中对全球ISI排放进行详尽的分析.
- 预测到2050年的ISI排放量.
- 确定各种污染物的过去和未来排放趋势的决定因素.
主要方法:
- 编制ISI排放 (CO2,传统和非传统空气污染物) 的全面全球清单.
- 从1970年到现在的历史排放趋势的分析.
- 预测未来的排放轨迹到2050年.
主要成果:
- 在不同污染物中观察到不同的排放趋势.
- 由于先进的技术,PM2.5排放量在1970-2000年期间下降.
- 由于严格的控制,最近NOx和SO2排放量正在下降,这一趋势预计将继续下去.
- 预计到2050年,发展中国家 (不包括中国) 将大幅增加其PM2.5排放的份额.
结论:
- 管道末端技术对于减少PM2.5至关重要,而过程修改对于减轻CO2的关键.
- 在ISI中,未来的减排将在很大程度上依赖于新兴经济体的技术创新和采用.
- 解决未来的ISI排放需要一种全球方法,重点关注可持续生产和减排技术.
相关概念视频
Steel Manufacturing
528
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...
528
Mechanical Characteristics of Steel
582
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...
582
Structural Steel Products
215
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...
215
Steel Fastening Techniques
167
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...
167
Atomic Emission Spectroscopy: Overview
2.3K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
2.3K
Portland Cement
229
Portland cement is the essential binding ingredient in concrete, made from finely ground materials including lime, iron, silica, and alumina. Lime is derived primarily from limestone, marble, marl, seashells, and clays, which also supply iron and alumina, while silica is sourced from sand, chalk, and bauxite. Contemporary manufacturing of Portland cement is a significant source of carbon dioxide emissions, prompting research into reducing its content in concrete through alternative...
229

