Co-production of pure hydrogen, carbon dioxide and nitrogen in a 10 kW fixed-bed chemical looping system,Sustainable Energy & Fuels

当前位置： X-MOL 学术 › Sustain. Energy Fuels › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Co-production of pure hydrogen, carbon dioxide and nitrogen in a 10 kW fixed-bed chemical looping system
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2020/01/02 , DOI: 10.1039/c9se00980a
Sebastian Bock _{1,

2,

3,

4} , Robert Zacharias _{1,

2,

3,

4} , Viktor Hacker _{1,

2,

3,

4}

Affiliation

The transition of our current carbon-based economy towards a sustainable energy system poses major challenges for all stakeholders. Harmful carbon dioxide emissions have to be substantially decreased and even negative emissions are mandatory to avoid a global mean temperature rise above 2 °C unless stringent regulatory measures are taken within the next decade. Chemical looping is a promising method to sequestrate pure carbon dioxide from fossil and renewable energy resources within the framework of carbon capture and storage (CCS) or utilization (CCU) technologies. The presented study demonstrates the generation of high-purity hydrogen exceeding 99.997% as a zero-emission energy carrier with the inherent co-generation of pure carbon dioxide (99%) and nitrogen (98.5%) in the largest fixed-bed chemical looping research system worldwide. The feedstock utilization of up to 60% in the context of pure hydrogen generation is highly competitive compared to other systems for decentralized hydrogen generation with the benefit of inherent carbon dioxide sequestration. The use of renewable primary energy sources as biogas qualifies the process as a negative emission technology (NET) if carbon dioxide is appropriately utilized.

中文翻译：

在10 kW固定床化学循环系统中联合生产纯氢气，二氧化碳和氮气

我们当前的碳基经济向可持续能源系统的过渡对所有利益相关者构成了重大挑战。除非在未来十年内采取严格的监管措施，否则必须大幅减少有害的二氧化碳排放，甚至是负排放也是必须的，以避免全球平均温度升高到2°C以上。化学循环是一种有前途的方法，可以在碳捕获和存储（CCS）或利用（CCU）技术的框架内从化石和可再生能源中隔离纯二氧化碳。提出的研究表明最大的固定床化学循环研究表明，作为零排放能量载体的高纯度氢气的产生量超过了99.997％，而固有的联产纯二氧化碳（99％）和氮气（98.5％）全球系统。与其他利用固有二氧化碳隔离优势的分散制氢系统相比，在纯制氢背景下高达60％的原料利用率极具竞争力。如果适当利用二氧化碳，可再生一次能源作为沼气的使用将使该过程成为负排放技术（NET）。

更新日期：2020-03-03

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文