Continuous Production of Hydrogen from Sorption-Enhanced Steam Methane Reforming in Two Parallel Fixed-Bed Reactors Operated in a Cyclic Manner

2006 ◽  
Vol 45 (26) ◽  
pp. 8788-8793 ◽  
Author(s):  
Zhen-shan Li ◽  
Ning-sheng Cai ◽  
Jing-biao Yang
Keyword(s):  
Continuous Production ◽  
Fixed Bed ◽  
Methane Reforming ◽  
Steam Methane Reforming ◽  
Steam Methane ◽  
Fixed Bed Reactors ◽  
Production Of Hydrogen

scholarly journals Cost Analysis of Hydrogen Production for Transport Application

2020 ◽  
pp. 39-45
Author(s):  
Deborah A. Udousoro ◽  
Cliff Dansoh
Keyword(s):  
Energy Cost ◽  
Water Electrolysis ◽  
Methane Reforming ◽  
Hydrogen Fuel ◽  
Steam Methane Reforming ◽  
Steam Methane ◽  
Production Of Hydrogen ◽  
Solar Powered ◽  
The Cost ◽  
Electrolysis System

One of the challenges faced in the United Kingdom energy market is the need to supply clean energy at affordable prices. Hydrogen can be used as an energy carrier and has been applied as fuel for automotive engines. Several technologies exist for the production of hydrogen fuel but their acceptance is dependent on the cost and impact on the environment. Steam methane reforming is an established hydrogen production process in the UK. Currently there are 8 fuel cell buses that run on hydrogen fuel but the hydrogen used is produced via steam methane reforming. Production of hydrogen through solar powered electrolysis is a cleaner option but at what economic cost? In this paper, cost analysis is conducted to compare the cost of producing the amount of hydrogen needed to run the RV1 fuel cell buses at Lea Interchange bus garage through steam methane reforming of natural gas to solar powered water electrolysis. From the analysis it was discovered that levelised energy cost of solar powered electrolysis system is 15 times the levelised energy cost of steam methane reforming of natural gas. Thus, the production of hydrogen is not economically feasible through solar powered water electrolysis system.

Advanced Exergoenvironmental Analysis of a Steam Methane Reforming System for Hydrogen Production

2010 ◽  
Author(s):  
G. Tsatsaronis ◽  
A. Boyano ◽  
T. Morosuk ◽  
A. M. Blanco-Marigorta
Keyword(s):  
Hydrogen Production ◽  
Environmental Impact ◽  
Chemical Processes ◽  
Methane Reforming ◽  
Exergy Destruction ◽  
Pollutant Formation ◽  
Steam Methane Reforming ◽  
Steam Methane ◽  
Production Of Hydrogen ◽  
Subsequent Improvement

In this paper, an advanced exergoenvironmental analysis is conducted for a steam methane reforming process for the production of hydrogen. The approach for calculating pollutant formation is generalized and the assumptions required for applying the analysis are discussed in detail. These are the main contributions of this work to the development of exergy-based methods for the analysis of energy-intensive chemical processes. In an advanced exergoenvironmental analysis, the environmental impact associated with the exergy destruction within a component as well as the component-related environmental impact and a component-related pollutant formation are split into unavoidable/avoidable and endogenous/exogenous parts. This splitting improves our understanding of the sources of thermodynamic inefficiencies and their effect to the formation of environmental impacts and pollutants, and facilitates a subsequent improvement of the overall process. Finally, some improvement options developed on the basis of the results of the advanced exergoenvironmental analysis are discussed.

Sign in / Sign up

Export Citation Format

Share Document