Validation and Applications of a Chemical Equilibrium Model for Struvite Precipitation

2009 ◽  
Vol 15 (3) ◽  
pp. 201-209 ◽  
Author(s):  
Sachin Gadekar ◽  
Pratap Pullammanappallil
Keyword(s):  
Chemical Equilibrium ◽  
Equilibrium Model ◽  
Struvite Precipitation ◽  
Chemical Equilibrium Model

scholarly journals Development of a Chemical Equilibrium Model of the Downdraft Fixed Bed Gasification Process with known Product Temperature, Using air as an Oxidizing Agent

2020 ◽  
Vol 24 (1) ◽  
Author(s):  
Daniel Andres Quintero-Coronel ◽  
Edwin Edgardo Espinel-Blanco ◽  
Eder Norberto Flórez-Solano
Keyword(s):  
Chemical Equilibrium ◽  
Equilibrium Model ◽  
Fixed Bed ◽  
Palm Kernel ◽  
Outlet Temperature ◽  
Reaction Products ◽  
Gasification Process ◽  
Downdraft Fixed Bed ◽  
Gasification Reaction ◽  
Chemical Equilibrium Model

A chemical equilibrium model for known outlet temperature of the products was carried out on a downdraft fixed bed gasifier. Biomass from oil palm kernel is used with proximate and ultimate analysis; the general gasification reaction takes into account the biomass moisture, the reaction products are formed by CH4, H2O, N2, CO, CO2 and H2. The model is described in detail and the equations are solved using the EES software. The model shows the results obtained for temperature ranges from 500 K to 1500 K and 1.0 atm. The model is validated by direct comparison of the gas composition with the results reported in the literature for similar conditions, obtaining favorable results.

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