Technology, ICFAI Foundation of Higher Education, Hyderabad, Telangana, India. ... 2Professor, Mechanical Engineering Department, JNTUH, Hyderabad.
International Conference on Emerging Trends in Mechanical Engineering (ICETiME-2016), September 23-24, 2016 at Faculty of Science and Technology, ICFAI Foundation of Higher Education, Hyderabad, Telangana, India .
Simulation of Coal Gasification process for CO2 capture using 2-D CFD Model in a Fluidized bed for Indian Coal *G.Suresh Kumar1, AVSSKS Gupta2 M.Viswanadham3 1
Assistant Professor, Mechanical Engineering Department, FST, IFHE University, Hyderabad 2 Professor, Mechanical Engineering Department, JNTUH, Hyderabad 3 Professor, Civil Engineering Department, JNTUH, Hyderabad Heat of reaction, kJ/mol Subscript g Gas phase s Solid phase m Index of phase l index of lth species in phase m Index of reaction Superscript 0 Initial value * Equilibrium conditions
Abstract: Fluidization process is very important in gasification and also its design. In this paper a model of fluidized bed gasifier with CO2 capture of an Indian coal is developed using MFIX software developed by NETL. Theevaporation and devolatilization processes are described using simplified chemical reactions, whereas carbonation reaction is modeled by the grain model. Initial and steady state stages of the gasification process are simulated. The simulated results demonstrate that a substantial increase in hydrogen content in product gas can be achieved by the addition of the CO2 sorbent material.
Jose et al [1], studied on coal gasification by steam with CO2 capture in fluidizing bed at low/medium temperature (600-800oC). In the experiment carried out by them, it was found that the H2 content in the syngas is as high as 80% in molar fraction [2]. The experimental study conducted by Lin et al consisted of coal gasification with continuous supply of coal/CaO mixture at high pressure. The results indicated that the H2 production is increases with pressure and syngas contained
