Fuel quality impact analysis for practical implementation of corn COB gasification gas in conventional gas turbine power plants

Abstract

Implementation of alternative fuels in gas turbine facilities is a challenging step towards cleaner and more responsible energy production. Despite numerous technical, economical and legal obstacles, possibilities for partial or complete substitution of fossil fuels are still subject of profound research. From all possible solutions, one with high acceptance is the symbiosis of existing gas turbine technologies and new ways of waste biomass energy utilization through firing or co-firing of biomass gasification gas. Therefore, the implementation of corn cob gasification gas with CO2 recirculation in gas turbines is analyzed in this paper. The followed methodology approaches this solution through two different scenarios each with 5 different cases. In the first scenario fuel mass flows are kept constant regardless of the fuel quality change consequence of the corn cob gas share, while in the second scenario fuel volume flows are assumed constant. Impact of fuel composition changes on combustion product characteristics was analyzed using CHEMKIN PRO with GRI-Mech 3.0. Finally, fuel quality impacts on a gas turbine power plant performance are analyzed using a mathematical model that enables the simulation of a 3.9 MW

Comparative Analysis of Gasification and Adiabatic Digestion of Corn for Practical Implementation in Conventional Gas Turbines

“…In previous analyses, a bespoke model of an industrial gas turbine was employed to recognize and understand the possible changes in gas turbine cycle performance when different gas blends of corn gasification are employed [12]. The developed numerical model was calibrated and validated in previous studies against industrial systems with errors no greater than 2% [31,32].…”

“…It is known that decreased methane amounts in biogases can cause off-design operation of turbine systems [10]; therefore, the practical implementation of these biogases can be only carried out through the proper acknowledgement of thermodynamic and operational impacts that could occur in such devices. These impacts can be predicted Gases 2021, 1 93 by mathematical models [11,12], which are highly flexible and have a wide range of stability parameters.…”

“…As shown in previous analyses [12], the practical implementation of biomass gasification is a promising way of implementing biomass as an alternative fuel in gas turbine facilities [1,13], with great potential of reduction of greenhouse gases (GHGs). Biomass obtained from waste such as corn cobs is also a growing trend in corn producing regions since corn represents one of the most produced agricultural products in the world.…”

“…Biomass obtained from waste such as corn cobs is also a growing trend in corn producing regions since corn represents one of the most produced agricultural products in the world. Despite its low heating value, it has been shown that up to 40% of the corn cob gasification gas could be co-fired with natural gas with promising outlet parameters [12]. Therefore, this source presents a path to development sustainable solutions with the improvement of the local environment.…”

Prediction of Novel Humified Gas Turbine Cycle Parameters for Ammonia/Hydrogen Fuels

“…A mathematical model developed and calibrated previously has been employed for simulation of a gas turbine in extreme conditions such as OXYFUEL combustion powered by methane (OF) and innovative working fluid blends (i.e., argon/CO 2 /water vapour-CARSOXY) [35,36]. It must be pointed out that the purpose of the model was to determine the possibility of implementation of more complex blends, such as co-firing of the gasification gas originated from corn cob with methane at off-design conditions [37].…”