Is grass biomethane a sustainable transport biofuel?

Korres, Nicholas E.; Singh, Anoop; Nizami, Abdul-Sattar; Murphy, Jerry D.

doi:10.1002/bbb.228

Cited by 115 publications

(55 citation statements)

References 31 publications

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“…) are the heat and electricity demand for the heating and mixing of the digester, pumping the digestate, and feeding the reactor , Korres et al 2010. In previous studies, the heat consumption was 17.1-26.9 GJ ha -1 a -1 , Korres et al 2010) and electricity consumption was 4.4-4.87 GJ ha -1 a -1 , Korres et al 2010.…”

Section: Energy Balance Of Cultivation Energy Crops For Biogas Producmentioning

confidence: 95%

“…The botanical composition of the grassland, environmental factors (soil fertility, precipitation) and cultivation factors (fertilization, harvest date) can have a significant impact on herbage chemical composition, specific methane yield and TS yield per hectare. The biogas production of grasses has been considered to be one way to produce indigenous biofuel, biomethane, with environmental and economic consideration in Ireland, where the grasses are cultivated in over 90 % of the field areas (Murphy & Power 2009, Korres et al 2010, Smyth et al 18 2010. According to Prochnow et al (2009), in developed countries, the production of biogas from surplus grassland has high potential for bioenergy to contribute to maintaining biodiversity, and at the same time create an economic incentive for farmers.…”

Section: Energy Crops and Novel Energy Crops For Biogas Production Inmentioning

confidence: 99%

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Screening of novel plants for biogas production in northern conditions

Seppälä

Laine

Rintala

2013

Bioresource Technology

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Esitetään Jyväskylän yliopiston matemaattis-luonnontieteellisen tiedekunnan suostumuksella julkisesti tarkastettavaksi yliopiston Ylistönrinteellä salissa YAA303 syyskuun 27. päivänä 2013 kello 12.Academic dissertation to be publicly discussed, In this thesis, the methane production potential of traditional and novel energy crops was evaluated in boreal conditions. The highest methane yield per hectare was achieved with maize (4 000-9 200 m 3 CH4 ha -1 a -1 ) and the second highest with brown knapweed (2 700-6 100 m 3 CH4 ha -1 a -1 ). Recently, the most feasible energy crop, grass, produced 1 200-3 600 m 3 CH4 ha -1 a -1 . The specific methane yields of traditional and novel energy crops varied from 170-500 l kg -1 volatile solid (VS). The highest specific methane yields were obtained with maize, while the novel energy crops were at a lower range. The specific methane yields decreased in the later harvest time with maize and brown knapweed, and the specific methane yield of the grasses decreased from the 1 st to 2 nd harvests. Maize and brown knapweed produced the highest total solid (TS) yields per hectare 13-23 tTS ha -1 , which were high when compared with the TS yields of grasses (6-13 tTS ha -1 ). The feasibility of maize and brown knapweed in co-digestion with liquid cow manure, in continuously stirred tank reactors (CSTR), was evaluated. According to the CSTR runs, maize and brown knapweed are suitable feeds and have stable processes, producing the highest methane yields (organic loading rate 2 kgVS m -3 d -1 ), with maize at 259 l kgVS -1 and brown knapweed at 254 l kgVS -1 . The energy balance (input/output) of the cultivation of the grasses, maize and brown knapweed was calculated in boreal conditions, and it was better when the digestate was used as a fertilizer (1.8-4.8 %) than using chemical fertilizers (3.7-16.2 %), whose production is the most energy demanding process in cultivation. In conclusion, the methane production of maize, grasses and novel energy crops can produce high methane yields and are suitable feeds for anaerobic digestion. The cultivation managements of maize and novel energy crops for biogas production require further research.

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Section: Energy Balance Of Cultivation Energy Crops For Biogas Producmentioning

confidence: 95%

Section: Energy Crops and Novel Energy Crops For Biogas Production Inmentioning

confidence: 99%

Screening of novel plants for biogas production in northern conditions

Seppälä

Laine

Rintala

2013

Bioresource Technology

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“…Several biofuel candidates were proposed to displace fossil fuels in order to eliminate the vulnerability of energy sector (Korres et al, 2010;Singh et al, 2011). Much of the discussion over biofuels production has focused on higher plants such as corn, sugarcane, soya bean, algae, oil-palm and others (Gnansounou et al, 2008;Pandey, 2009).…”

Section: Introductionmentioning

confidence: 99%

Isolation Purification and Culturing of Cyanobacteria and Microalgae towards Biodiesel Production: Current Status

Hossain¹,

Ratnayake²,

Kumara³

2016

AJBB

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The experimental design and techniques for biofuel production from different feedstock varies depending on geographical region, water sources (fresh water, sea water, waste water or brackish water) and overall, available species variations. Also the sampling, culture conditions, isolation, purification of cultures, harvesting, fatty acid extraction followed by conversion of extracted lipids to biofuel followed different methods in different studies. Therefore, it is a demand to simplify the techniques, improve the methods, and develop the efficiencies with less laborious inputs but rapid and best outcomes. Biofuel production research should focus not only selecting suitable biomass or obtaining high yield of lipids but also look for economically feasible method along with sufficient and continuous supply of biomass. Considering these, cyanobacteria and microalgae creates a great potential for biofuel production. In this review, we focused on compiling different materials and methods used for different studies and their best outputs towards biofuel production from cyanobacteria and micro-algae.

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“…For efficient distribution of produced biomethane, the existing network of natural gas grid can be utilized with endapplications of electricity, thermal, and transportation energy generation (Korres et al, 2010). The biomethane generated from grass or grass silage is considered sustainable biofuel by the EU Renewable Energy Directive (ECDirective, 2009).…”

Section: Biomethanementioning

confidence: 99%

Key issues in estimating energy and greenhouse gas savings of biofuels: challenges and perspectives

Rathore

Nizami²,

Singh

et al. 2016

BRJ

Self Cite

138

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HIGHLIGHTSLand-use and land-use changes may overestimate the biofuel sustainability.Environmental and social acceptability is essential in making biofuel-support policies. Keywords:Energy balance Greenhouse gas (GHG) balance Biofuels Sustainability Life cycle assessment (LCA)The increasing demand for biofuels has encouraged the researchers and policy makers worldwide to find sustainable biofuel production systems in accordance with the regional conditions and needs. The sustainability of a biofuel production system includes energy and greenhouse gas (GHG) saving along with environmental and social acceptability. Life cycle assessment (LCA) is an internationally recognized tool for determining the sustainability of biofuels. LCA includes goal and scope, life cycle inventory, life cycle impact assessment, and interpretation as major steps. LCA results vary significantly, if there are any variations in performing these steps. For instance, biofuel producing feedstocks have different environmental values that lead to different GHG emission savings and energy balances. Similarly, land-use and land-use changes may overestimate biofuel sustainability. This study aims to examine various biofuel production systems for their GHG savings and energy balances, relative to conventional fossil fuels with an ambition to address the challenges and to offer future directions for LCA based biofuel studies. Environmental and social acceptability of biofuel production is the key factor in developing biofuel support policies. Higher GHG emission saving and energy balance of biofuel can be achieved, if biomass yield is high, and ecologically sustainable biomass or non-food biomass is converted into biofuel and used efficiently.

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Is grass biomethane a sustainable transport biofuel?

Cited by 115 publications

References 31 publications

Screening of novel plants for biogas production in northern conditions

Screening of novel plants for biogas production in northern conditions

Isolation Purification and Culturing of Cyanobacteria and Microalgae towards Biodiesel Production: Current Status

Key issues in estimating energy and greenhouse gas savings of biofuels: challenges and perspectives

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