Hydrogen Production from Natural Gas Using an Iron‐Based Chemical Looping Technology: Process Modeling, Heat Integration, and Exergy Analysis

2019 ◽  
Vol 8 (8) ◽  
pp. 1900377 ◽  
Author(s):  
Fanhe Kong ◽  
Chunyi Li ◽  
Yitao Zhang ◽  
Yu Gu ◽  
Mandar Kathe ◽  
...  
Author(s):  
Xiaosong Zhang ◽  
Hongguang Jin

This paper proposes a multi-input chemical looping hydrogen generation system (MCLH), which generates hydrogen, through the use of natural gas and coal. In this system, a new type of oven, burning coal instead of natural gas as heating resource for hydrogen production reaction, is adopted. Coal can be converted to hydrogen indirectly without gasification. Benefits from the chemical looping process, the CO2 can be captured without energy penalty. With the same inputs of fuel, the new system can product about 16% more hydrogen than that of individual systems. As a result, the energy consumption of the hydrogen production is about 165J/mol-H2. Based on the exergy analyses, it is disclosed that the integration of synthetic utilization of natural gas and coal plays a significant role in reducing the exergy destruction of the MCLH system. The promising results obtained may lead to a clean coal technology that will utilize natural gas and coal more efficiently and economically.


2021 ◽  
pp. 132192
Author(s):  
Zhentong Wang ◽  
Zhiqiang Gong ◽  
Yusan Turap ◽  
Yidi Wang ◽  
Zhe Zhang ◽  
...  

2014 ◽  
Vol 63 ◽  
pp. 7408-7420 ◽  
Author(s):  
Letitia Petrescu ◽  
Christoph R. Müller ◽  
Calin-Cristian Cormos

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Grzegorz Słowiński ◽  
Adam Smoliński

The continuously increasing oil prices as well as stronger environmental regulations regarding greenhouse emissions made the greatest economic powers search a new, price competitive, and environment friendly energy carrier, such as hydrogen. The world research activities in these terms focus on the development of integrated hydrogen and power generating technologies, particularly technologies of hydrogen production from various carbonaceous resources, like methane, coal, biomass, or waste, often combined with carbon dioxide capture. In the paper the thermodynamic analysis of the enhancement of hydrogen production in iron based chemical looping process is presented. In this method, iron oxide is first reduced to iron with a reducing agent, such as carbon oxide, hydrogen, or mixture of both gases (synthesis gas), and then, in the inverse reaction with steam, it is regenerated to iron oxide, and pure stream of hydrogen is produced.


Sign in / Sign up

Export Citation Format

Share Document