Is it better to import palm oil from Thailand to produce biodiesel in Ireland than to produce biodiesel from indigenous Irish rape seed?

Thamsiriroj, T.; Murphy, Jerry D.

doi:10.1016/j.apenergy.2008.07.010

Cited by 117 publications

(75 citation statements)

References 10 publications

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“…The energy balance of different crops varies among crop species, cultivation managements, growing conditions and climatic conditions. In previous studies for Irish conditions, the net energy yields from the cultivation of grass (67-78 GJ ha -1 a -1 ) ) for biogas production were higher than rapeseed biodiesel (25 GJ ha -1 a -1 ) (Thamsiriroj & Murphy 2009) and wheat ethanol (4 GJ ha -1 a -1 ) (Murphy & Power 2008). The Renewable Energy Directive states that the GHG savings should be at least 35 %, as defined by using fossil fuels as a reference.…”

Section: Energy Balance and Greenhouse Gas Emissions Of The Biogas Plmentioning

confidence: 79%

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 and Greenhouse Gas Emissions Of The Biogas Plmentioning

confidence: 79%

Screening of novel plants for biogas production in northern conditions

Seppälä

Laine

Rintala

2013

Bioresource Technology

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“…Extraction and consumption of natural resources and emissions, and also process of the exchange environment in each phase that are relevant in the product life cycle is compiled in a Life Cycle Inventory (LCI). LCI will use secondary data, starting from plantation (including land clearing) [17][18][19][20][21][22][23][24][25], CPO production through CPO factory [17][18]21], and biodiesel factory [18].…”

Section: Methodsmentioning

confidence: 99%

Cradle to Gate Simple Life Cycle Assessment of Biodiesel Production in Indonesia

Hidayatno¹,

Zagloel²,

Purwanto³

et al. 2011

MST

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The focus of this research is to analyze potential environmental impact in the supply chain of palm oil biodiesel industries. Simple Life Cycle Assessment (LCA) is applied to analyze impacts, produced by the three main units in the supply chain of Palm-Oil-based Biodiesel, which are Palm Plantation, CPO mill, and Biodiesel Plant. We developed LCA calculation model using spreadsheet software, used to assess a number of input scenarios to evaluate the best scenario, in variation of: land quality, land area and the rate of clearing, land clearing technique and type of the original land. The biggest potential environmental impact is the contribution to global warming impact which emissions are produced mostly from unit plantation. Although plantation has biggest potential to contribute to environmental impact, it also gives biggest reduction to global warming impact. In general, the biggest environmental impact in the LCA category is climate change, followed by photo-oxidant formation and eutrophication. The biggest impacts in the supply chain are from the plantation, especially when choosing the right technique for land clearing. In addition, due to LCA linearity nature, the scenario that we tested does not change the total accumulative environmental impacts.

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“…Thamsiriroj and Murphy (2009) compared biodiesel produced from rapeseed in Ireland with palm oil from Thailand and come to the conclusion that CO 2 emission from palm oil are lower on a GJ bases. They calculate a greenhouse gas reduction of only 28.8% for Irish biodiesel vs. 55.1 % for pal moil produced in Thailand.…”

Section: Performance Of Rapeseed Under Sustainability Criteriamentioning

confidence: 99%

Sustainable rapeseed production between science and politics

Christen

2012

OCL

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Is it better to import palm oil from Thailand to produce biodiesel in Ireland than to produce biodiesel from indigenous Irish rape seed?

Cited by 117 publications

References 10 publications

Screening of novel plants for biogas production in northern conditions

Screening of novel plants for biogas production in northern conditions

Cradle to Gate Simple Life Cycle Assessment of Biodiesel Production in Indonesia

Sustainable rapeseed production between science and politics

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