@article { author = {}, title = {Editorial Board}, journal = {Biofuel Research Journal}, volume = {4}, number = {4}, pages = {-}, year = {2017}, publisher = {Alpha Creation Enterprise}, issn = {2292-8782}, eissn = {2292-8782}, doi = {10.18331/BRJ2017.4.4.1}, abstract = {}, keywords = {}, url = {https://www.biofueljournal.com/article_53472.html}, eprint = {https://www.biofueljournal.com/article_53472_43add8382b2ee05291b036bc4054b6ba.pdf} } @article { author = {Vaccaro, Luigi}, title = {Biofuels and green chemistry - a common journey ahead}, journal = {Biofuel Research Journal}, volume = {4}, number = {4}, pages = {713-714}, year = {2017}, publisher = {Alpha Creation Enterprise}, issn = {2292-8782}, eissn = {2292-8782}, doi = {10.18331/BRJ2017.4.4.2}, abstract = {}, keywords = {}, url = {https://www.biofueljournal.com/article_53473.html}, eprint = {https://www.biofueljournal.com/article_53473_f555bfabbe63790a0bfe497045f87ec8.pdf} } @article { author = {Cruz-Salomón, Abumalé and Ríos-Valdovinos, Edna and Pola-Albores, Francisco and Meza-Gordillo, Rocío and Lagunas-Rivera, Selene and Ruíz-Valdiviezo, Víctor M.}, title = {Anaerobic treatment of agro-industrial wastewaters for COD removal in expanded granular sludge bed bioreactor}, journal = {Biofuel Research Journal}, volume = {4}, number = {4}, pages = {715-720}, year = {2017}, publisher = {Alpha Creation Enterprise}, issn = {2292-8782}, eissn = {2292-8782}, doi = {10.18331/BRJ2017.4.4.3}, abstract = {Untreated agro-industrial wastewaters are undesirable in the aquatic environment due to the presence of high organic matter contents. However, they may constitute a large potential for biogas production. The present investigation is focused on three laboratory-scale anaerobic expanded granular sludge bed (EGSB) bioreactors, continuously operated for 60 d under mesophilic condition with the aim of exploring the feasibility of treating three most significant agro-industrial wastewaters in Chiapas, Mexico (i.e., cheese whey, vinasse, and coffee-processing wastewater). The EGSB bioreactors were operated with a hydraulic retention time (HRT) of 6 d under stable conditions (i.e., buffer index (BI) of 0.31, 0.34, and 0.03), generating a maximum chemical oxygen demand (COD) removal efficiency of 91, 74, and 96% with an average methane production of 340, 245, and 300 mL/g COD∙d for cheese whey, vinasse, and coffee-processing wastewater, respectively. According to the obtained results, the EGSB bioreactors could be a sustainable alternative to simultaneously solve the environmental problems and to produce bioenergy.}, keywords = {Anaerobic EGSB reactor,Biogas production,Vinasse,Cheese whey,Coffee-processing wastewater}, url = {https://www.biofueljournal.com/article_53196.html}, eprint = {https://www.biofueljournal.com/article_53196_b6fdebf721c7ebed200cd33b3d01c3f6.pdf} } @article { author = {Ranisau, Jonathan and Ogbe, Emmanuel and Traino, Aaron and Barbouti, Mohammed and Elsholkami, Mohamed and Elkamel, Ali and Fowler, Michael}, title = {Optimization of biofuel production from corn stover under supply uncertainty in Ontario}, journal = {Biofuel Research Journal}, volume = {4}, number = {4}, pages = {721-729}, year = {2017}, publisher = {Alpha Creation Enterprise}, issn = {2292-8782}, eissn = {2292-8782}, doi = {10.18331/BRJ2017.4.4.4}, abstract = {In this paper, a biofuel production supply chain optimization framework is developed that can supply the fuel demand for 10% of Ontario. Different biomass conversion technologies are considered, such as pyrolysis and gasification and subsequent hydro processing and the Fischer-Tropsch process. A supply chain network approach is used for the modeling, which enables the optimization of both the biorefinery locations and the associated transportation networks. Gasification of corn stover is examined to convert waste biomass into valuable fuel. Biomass-derived fuel has several advantages over traditional fuels including substantial greenhouse gas reduction, generating higher quality synthetic fuels, providing a use for biomass waste, and potential for use without much change to existing infrastructure. The objective of this work is to show the feasibility of the use of corn stover as a biomass feedstock to a hydrocarbon biofuel supply chain in Ontario using a mixed-integer linear programming model while accounting for the uncertainty in the availability of corn stover. In the case study, the exact number of biorefineries is left as a policy decision and the optimization is carried out over a range of the possible numbers of facilities. The results obtained from the case study suggests implementing gasification technology followed by Fischer-Tropsch at two different sites in Ontario. The optimal solution satisfied 10% of the yearly fuel demand of Ontario with two production plants (14.8 billion L of fuel) and requires an investment of $42.9 billion, with a payback period of about 3 years.}, keywords = {Biofuel,Supply chain optimization,Biomass to biofuels,Two-stage stochastic programming,Uncertainty}, url = {https://www.biofueljournal.com/article_53197.html}, eprint = {https://www.biofueljournal.com/article_53197_572960497a18b4148720e6db5fafe1a9.pdf} } @article { author = {Abdul Manan, Musaalbakri and Webb, Colin}, title = {Modern microbial solid state fermentation technology for future biorefineries for the production of added-value products}, journal = {Biofuel Research Journal}, volume = {4}, number = {4}, pages = {730-740}, year = {2017}, publisher = {Alpha Creation Enterprise}, issn = {2292-8782}, eissn = {2292-8782}, doi = {10.18331/BRJ2017.4.4.5}, abstract = {The promise of industrial biotechnology has been around since Chaim Weizmann developed acetone–butanol–ethanol fermentation at the University of Manchester in 1917 and the prospects nowadays look brighter than ever. Today’s biorefinery technologies would be almost unthinkable without biotechnology. This is a growing trend and biorefineries have also increased in importance in agriculture and the food industry. Novel biorefinery processes using solid state fermentation (SSF) technology have been developed as alternative to conventional processing routes, leading to the production of added-value products from agriculture and food industry raw materials. SSF involves the growth of microorganisms on moist solid substrate in the absence of free-flowing water. Future biorefineries based on SSF aim to exploit the vast complexity of the technology to modify biomass produced by agriculture and the food industry for valuable by-products through microbial bioconversion. In this review, a summary has been made of the attempts at using modern microbial SSF technology for future biorefineries for the production of many added-value products ranging from feedstock for the fermentation process and biodegradable plastics to fuels and chemicals.}, keywords = {Solid state fermentation,Biorefineries,Microbial bioconversion,Submerged fermentation,Added value products}, url = {https://www.biofueljournal.com/article_53201.html}, eprint = {https://www.biofueljournal.com/article_53201_9ba0329fa9e86e280d9647076a03c068.pdf} } @article { author = {Khoshnevisan, Benyamin and Tsapekos, Panagiotis and Alfaro, Natalia and Díaz, Israel and Fdz-Polanco, María and Rafiee, Shahin and Angelidaki, Irini}, title = {A review on prospects and challenges of biological H2S removal from biogas with focus on biotrickling filtration and microaerobic desulfurization}, journal = {Biofuel Research Journal}, volume = {4}, number = {4}, pages = {741-750}, year = {2017}, publisher = {Alpha Creation Enterprise}, issn = {2292-8782}, eissn = {2292-8782}, doi = {10.18331/BRJ2017.4.4.6}, abstract = {The production of biogas from sulfate-rich materials under anaerobic digestion results in the formation of hydrogen sulfide (H2S). The recommended level of H2S in the produced biogas for direct combustion purposes is in the range of 0.02 to 0.05% w/w (200 to 500 ppm), therefore, desulfurization is required to avoid damages to combustion equipment and prevent the formation of sulfur dioxide (SO2) which is an acid rain precursor. It has been well documented that physical, thermal, and chemical desulfurization approaches suffer from high operation costs as well as waste production needing to be disposed of. Accordingly, a great deal of efforts has been put into biological methods because of being more environmentally friendly and more economically advantageous in comparison with the other techniques. Biotrickling filtration (BTF) and microaerobic desulfurization have shown a high potential for H2S removal at pilot- and large-scale plants. Despite all the progress made and the promising aspects keeping these methods at the core of interest, there are still challenges to be addressed. The present article attempts to briefly review and discuss the challenges and future prospects of BTF and microaerobic desulfurization.}, keywords = {Biogas,Biogas sweetening,Desulfurization,Biotrickling filtration,Microaeration}, url = {https://www.biofueljournal.com/article_53413.html}, eprint = {https://www.biofueljournal.com/article_53413_998256bb6798c8c3ce735118624f844a.pdf} }