Batch biohydrogen production from dilute acid hydrolyzates of fruits-and-vegetables wastes and corn stover as co-substrates
Por:
Rodriguez-Valderrama, Santiago, Escamilla-Alvarado, Carlos, Magnin, Jean-Pierre, Rivas-Garcia, Pasiano, Valdez-Vazquez, Idania, Rios-Leall, Elvira
Publicada:
1 sep 2020
Resumen:
Fruits-and-vegetables wastes (FVW) and corn stover (CS) are two of the
most recurred lignocellulosic biomasses used for biofuel production. In
this work, the co-processing of FVW and CS for biohydrogen production
was proposed and evaluated through a set of experimental designs. First,
a 5. 2 general factorial was applied on the dilute acid pretreatment at
five levels of FVW:CS ratios (0:1, 1:3, 1:1, 3:1 and 1:0 dry mass basis)
and two levels of the type of catalyst (HCl or H2SO4 at 0.5% in
volumetric basis). Then, biohydrogen production using the dilute acid
hydrolyzates was carried out in batch mode at 35 degrees C in a 32
factorial design, the factors being the inoculum to substrate ratio
(0.8, 1.0, and 1.2 g g(-1)) and the initial concentration of reducing
sugars (10, 13 and 16 g L-1). The effects of the type of acid catalyst
and the FVW:CS ratio were significant in terms of sugars production and
yield. The best catalyst was HCl for the 3:1 FVW:CS ratio, which
produced monomeric sugars concentrations of 10.0, 3.7 and 2.9 g L-1 for
glucose, xylose and arabinose, respectively. The hydrolyzates were
suitable for biohydrogen production, reaching yields of 2.31 mol H-2
mol(-1)glucose and hydrogen production rates of 8.83 mL H-2 h(-1). An
economic prospection at lab scale demonstrated that hydrogen production
presented net revenues of 0.009 USD per kg of co-substrates, resulting
in 24% profitability of hydrogen production over its production costs.
Therefore, this co-processing is an interesting proposal with further
applications on biorefinery models.
Filiaciones:
Rodriguez-Valderrama, Santiago:
Univ Autonoma Nuevo Leon, Ctr Res Biotechnol & Nanotechnol CIByN, Fac Chem Sci, Engn & Sustainable Bioproc Grp,Parque Invest & In, Km 10 Highway Int Airport Mariano Escobedo, Apodaca 66629, Nuevo Leon, Mexico
Univ Savoie Mt Blanc, Univ Grenoble Alpes, CNRS, Grenoble INP,LEPMI, F-38000 Grenoble, France
Escamilla-Alvarado, Carlos:
Univ Autonoma Nuevo Leon, Ctr Res Biotechnol & Nanotechnol CIByN, Fac Chem Sci, Engn & Sustainable Bioproc Grp,Parque Invest & In, Km 10 Highway Int Airport Mariano Escobedo, Apodaca 66629, Nuevo Leon, Mexico
Magnin, Jean-Pierre:
Univ Savoie Mt Blanc, Univ Grenoble Alpes, CNRS, Grenoble INP,LEPMI, F-38000 Grenoble, France
Rivas-Garcia, Pasiano:
Univ Autonoma Nuevo Leon, Ctr Res Biotechnol & Nanotechnol CIByN, Fac Chem Sci, Engn & Sustainable Bioproc Grp,Parque Invest & In, Km 10 Highway Int Airport Mariano Escobedo, Apodaca 66629, Nuevo Leon, Mexico
Valdez-Vazquez, Idania:
Univ Nacl Autonoma Mexico, Lab Res Adv Proc Water Treatment, Inst Ingn, Unidad Acad Juriquilla, Mexico City, DF, Mexico
Rios-Leall, Elvira:
CINVESTAV IPN, Environm Biotechnol & Renewable Energies R&D Grp, Dept Biotechnol & Bioengn, Mexico City, DF, Mexico
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