Thermodynamic Evaluation Of Processes For Hydrogen Production From Carbonaceous Fuel

Download or read book Thermodynamic Evaluation of Processes for Hydrogen Production from Carbonaceous Fuel written by Bhanu Kaini and published by . This book was released on 2010 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research work presents the thermodynamic analysis of hydrogen production using steam methane reforming process at different conditions. The model is developed using HSC 4.1 software and spreadsheet. Methane is chosen to represent the carbonaceous fuel and steam methane reforming process (once through and cyclic) for hydrogen production is analyzed based on 1 st law and 2 nd law of thermodynamics i.e., energetic and exergetic efficiencies. The mass, energy and exergy analysis of each step is done. The optimal condition for production of maximum hydrogen is found using CO 2 removal agent and O 2 transfer compound. The efficiency is calculated as a function of steam content, temperature and amount of CO 2 removal agent and O 2 transfer compound. The pressure is kept constant at one atmosphere. Operating temperature, CaO loading, Fe 2 O 3 loading and H 2 O content is determined from the once through process. It is found that the maximum H2 production is with the cyclic process. Maximum H 2 produced in cyclic process with CaO & Fe 2 O 3 loadings is 99.2%. Also CO 2 content is comparatively lower in cyclic process. Theoretical efficiencies can be used to compare with the available data which will help to minimize the losses in the process. The results can be used as a baseline for the design of H 2 production technology. The main aim of this research is to develop a thermodynamic protocol for evaluating hydrogen production processes.