Biogas simulated

Modelling and simulation of complex biochemical processes, tEiking the Biogas Tower Reactor as an example... 

Table 3.1. Comparing steady state experimental data with simulated data in module 1 of the Biogas Tower Reaktor...

Chen Z, Qin C. Experiment of biogas digester with spiral heating system and the simulation with fluent model. China Biogas 2009 27(3) 36-9. 

Shen F, et al. Improving the mixing performances of rice straw anaerobic digestion for higher biogas production by computational fluid d5mamics (CFD) simulation. Appl Bio-chem Biotechnol 2013 171(3) 626-42. 

Figure 2. Maximum stack power and fuel utilization at different operating points and CH4 content of the biogas. Fuel gas composition was adjusted on the basis of thermodynamic simulations with a reformer outlet temperature of 700 °C ...

Figure 3. 1,400 h test of MK200 stack with simulated biogas reformate... 

Promising performance values of I kWe and 52 % efficiency for a simulated biogas containing 55 Vol.-% CH4 are shown. 

Fig. 6.31 Performance of direct-biogas SOFC 1 month test of internal reforming SOFC running on simulated and desulfurized actual biogases at 800°C using anode-supported button cells...

CosoU P, Ferrone M, Pricl S, Fermeglia M (2008) Hydrogen sulfide removal from biogas by zeolite adsorption. Part II. MD simulations. Chem Eng J 145 93-99... 

Devianto et al. [21] investigated the poisoning effect of H2S on Ni-based anodes in MCFC at low H2S concentrations, simulating biogas impurity. A conventional Ni-Cr anode was coated with ceria using dip coating to form a rare earth metal oxide thin layer on the surface of the anode. Electrochemical studies of the Ni-based samples were performed in symmetric cells under anode atmosphere (H2, CO2, H2O, and N2 as balance) with 2, 6, 12, and 24 ppm of H2S by means of electrochemical impedance spectroscopy. 

Jurgensen L, Ehimen EA, Bom J, Holm-Nielsen JB (2015) Dynamic biogas upgrading based on the Sabatier process Thermodynamic and dynamic process simulation. Biores Technol 178 323-329... 

Escudero MJ, Gomez de Parada I, Fuerte A (2015) Performance evaluation of WNi-Ce02 as anode in a solid oxide fuel cell fed by simulated biogas mixtures. Int J Hydrogen Energy 40 11303-11314... 

FIGURE 2.1 Schematic representation and picture of a lab-scale semi-batch reactor used for enzymatic desulfurization of simulated biogas containing SOOOppm of H2S. Outlet gas mixture is analyzed using a GC equipped with a TCD and a FPD for the detection of CH4/CO2 and H2S, respectively. 

Figure 2.2a shows the effect of enzyme concentration (1.5-5%) on the H2S removal from simulated biogas for a period of 8h. Yellow line represents the H2S concentration in the feed stream (3009 ppm). H2S in the outlet gas was detected only for enzyme concentrations of <4%. H2S concentration lines show a breakthrough that depends on the enzyme concentration. 

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