TY  - CONF
AV  - none
ID  - scholars9079
TI  - Assessment of Energy Flows in Integrated Catalytic Adsorption (ICA) Steam Gasification for Hydrogen Production
SP  - 1577
KW  - Adsorption; Carbon dioxide; Fluidized beds; Gasification; Hydrogen; Steam
KW  -  energy; Fluidized bed gasifiers; Gasification temperatures; Hydrogen-generation process; Integrated; Mass; Renewable hydrogen production; Steam gasification
KW  -  Hydrogen production
N2  - Biomass has a potential to produce sustainable and renewable hydrogen due to its low sulphur and nitrogen content (low NOx and SOx emissions) and contributes towards net CO2 cycle. Biomass steam gasification is found to be most promising among thermal conservation processes for renewable hydrogen production. The energy required for gasification using steam is high compared to other gasification agents e.g. air or pure oxygen. The integrated catalytic adsorption (ICA) utilizes catalyst and CO2 adsorbent together in the single fluidized bed gasifier. The present study investigates the energy flows to optimize the gasification energy requirement with respect to hydrogen concentration and yield in the ICA process at 600, 650 and 750°C. The overall gasification energy required increased with increasing gasification temperature from 675 to 750°C. However, a slight reduction in required energy was observed from 600°C to 675°C which might be due to strong CO2 adsorption, an exothermic reaction, and contributes to the energy requirements of the process. This was further verified with zero CO2 and highest hydrogen compositions (82 vol) at 675°C. However, ICA steam gasification is found to be a high energy consuming process and heat integration has to be considered for an economical hydrogen generation process.
N1  - cited By 1; Conference of 9th International Conference on Applied Energy, ICAE 2017 ; Conference Date: 21 August 2017 Through 24 August 2017; Conference Code:139368
PB  - Elsevier Ltd
SN  - 18766102
Y1  - 2017///
EP  - 1581
VL  - 142
A1  - Khan, Z.
A1  - Yusup, S.
A1  - Kamble, P.
A1  - Watson, I.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041543072&doi=10.1016%2fj.egypro.2017.12.610&partnerID=40&md5=cc8b079fb48d0ce1b7d7bda8909cf791
ER  -