合成气
温室气体
二甲醚
甲烷
环境科学
化石燃料
原材料
废物管理
投资回收期
二氧化碳
天然气
甲醇
化学
工程类
经济
生产(经济)
催化作用
有机化学
生物
宏观经济学
生态学
作者
Loukia-Pantzechroula Merkouri,Huseyin B. Ahmet,Tomás Ramı́rez Reina,Melis S. Duyar
出处
期刊:Fuel
[Elsevier]
日期:2022-03-12
卷期号:319: 123741-123741
被引量:20
标识
DOI:10.1016/j.fuel.2022.123741
摘要
The use of fossil fuels is primarily responsible for the increasing amounts of greenhouse gas emissions in the atmosphere and, unless this issue is quickly addressed, the effects of global warming will worsen. Synthesis gas (syngas) is an attractive target chemical for carbon capture and utilisation and dry reforming of methane (DRM) enables the conversion of methane (CH4) and CO2, the two most abundant greenhouse gases, to syngas. This paper presents a techno-economic analysis of a syngas-to-dimethyl ether (DME) process, by utilising landfill gas as feedstock. The process developed herein produces DME, methanol and high-pressure steam as products, resulting in an annual income of €3.49 m and annual operating expenses of €1.012 m. Operating profit was calculated to be €2.317 m per year and the net present value (NPV) was €11.70 m at the end of the project’s 20-year lifespan with a profitability index of 0.83€/€. The process was expected to have a payback time of approximately 10 years and an internal rate of return of 12.47%. A key aspect of this process was CO2 utilisation, which consumed 196,387 tonnes of CO2 annually. The techno-economic analysis conducted in this paper illustrates that greenhouse gas utilisation processes are currently feasible both in terms of CO2 consumption and profitability.
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