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MINLP Synthesis of Processes for the Production of Biogas from Organic and Animal Waste

R. Drobež ; Scientific research centre Bistra Ptuj, Slovenski trg 6, SI-2250 Ptuj, Slovenia
Z. Novak Pintarič ; University of Maribor, Faculty of Chemistry and Chemical Engineering, Smetanova ul. 17, SI-2000, Maribor, Slovenia
B. Pahor ; Perutnina Ptuj, Potrèeva 10, SI-2250 Ptuj, Slovenia
Z. Kravanja orcid id orcid.org/0000-0003-1374-233X ; University of Maribor, Faculty of Chemistry and Chemical Engineering, Smetanova ul. 17, SI-2000, Maribor, Slovenia


Puni tekst: engleski pdf 392 Kb

str. 445-459

preuzimanja: 373

citiraj


Sažetak

This paper describes a superstructure approach for the synthesis of biogas processes simultaneously with the selection of different process background alternatives. The superstructure consists of anaerobic fermentation under thermophilic or mesophilic conditions,
including options for a rendering plant, with different organic and animal wastes from either existing or new plants, different water supplies, wastewater treatments and biogas usage options. An aggregated mathematical model with an economic objective function, formulated as a mixed-integer nonlinear programming (MINLP) problem, was developed. An industrial case study was applied to an existing large-scale meat company, in order to describe the mathematical model and illustrate the MINLP synthesis approach.
The optimal solution indicates that significant benefit can be obtained if biogas processes are selected simultaneously with the selection of different process background alternatives thus yielding the optimal integration of biogas processes with their background.

Ključne riječi

Biogas, optimization, animal waste

Hrčak ID:

45390

URI

https://hrcak.srce.hr/45390

Posjeta: 773 *