从甲中生产低碳气的动态生态技术经济分析
Giulio Martinoli1,2, Emanuele Moioli1,2
1Dipartimento di Chimica, Materiali e Ingegneria Chimica 'Giulio Natta', Politecnico di Milano Piazza Leonardo da Vinci 32 20133 Milano Italy emanuele.moioli@polimi.it.
Energy advances
|February 26, 2026
概括
这项研究比较了低碳生产方法,如生物气改造和电气化蒸汽甲改造 (e-SMR) 与传统方法. 碳捕获和储存 (CCS) 显著减少所有方法的排放,使用e-SMRR.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 能源系统分析 能源系统分析
- 环境科学 环境科学
背景情况:
- 目前的气生产严重依赖化石燃料,为全球二氧化碳排放做出了重大贡献.
- 开发低碳气替代品对于缓解气候变化至关重要.
- 生物气改造和电气化蒸汽甲改造 (e-SMR) 是传统方法的有希望的替代方案.
研究的目的:
- 进行生物气体改革和e-SMR的动态技术经济评估.
- 将这些方法与传统的蒸汽甲改制 (SMR) 和自热改制 (ATR) 进行比较.
- 评估实施碳捕获和储存 (CCS) 对效率,排放和成本的影响.
主要方法:
- 对SMR,ATR,沼气改革和电子SMR的动态技术经济建模.
- 在法国,瑞士和德国的场景中纳入定时和季节性电价波动.
- 分析工艺效率,碳足迹减少,以及使用CCS和不使用CCS的生产成本.
主要成果:
- 大规模的SMR和ATR显示出最高的效率 (79-81%),与CCS保持一致.
- 生物气改造和电子SMR表现出较低的效率,但CCS显著减少了碳足迹.
- 对于SMR,ATR和生物气改造来说,CCS的实施在经济上是有利的,特别是碳信用.
- 电气中小企业的竞争力高度依赖于电价和电网组合,CCS提高了其经济可行性.
结论:
- 碳碳缩技术是通过各种方法降低气生产的碳强度的关键技术.
- 生物气改造和电子SMR提供了可行的低碳途径,尽管效率和成本因规模和能源来源而异.
- 电子SMR的经济可行性与电价和电网脱碳化密切相关.
- 优化操作,例如间歇使用低成本电力,可以进一步提高电子SMR的经济性能.
相关概念视频
03:40Hess's Law
56.2K
There are two ways to determine the amount of heat involved in a chemical change: measure it experimentally, or calculate it from other experimentally determined enthalpy changes. Some reactions are difficult, if not impossible, to investigate and make accurate measurements for experimentally. And even when a reaction is not hard to perform or measure, it is convenient to be able to determine the heat involved in a reaction without having to perform an experiment.
56.2K
03:25Free Energy Changes for Nonstandard States
13.7K
The free energy change for a process taking place with reactants and products present under nonstandard conditions (pressures other than 1 bar; concentrations other than 1 M) is related to the standard free energy change according to this equation:
13.7K
02:13Reduction of Alkenes: Catalytic Hydrogenation
14.5K
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...
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...
14.5K
01:30Environmental Applications of Microorganisms
1.3K
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
1.3K