Thermal self-sustainability of biochar production by pyrolysis

“…Studies of biochars derived from various feedstocks such as animal manure (Cantrell et al, 2012), woodchip (Spokas et al, 2009), wheat straw (Zavalloni et al, 2011), rice husk (Maiti et al, 2006), sludge (Lu et al, 2012), and algal biomass (Bird et al, 2011) showed that the C contents increased upon pyrolysis as compared to source materials and varied with source material and pyrolysis temperature (PT). Pyrolysis temperature also influences pH, surface area, and other properties of biochars made from various feedstocks (Hossain et al, 2011;Pereira et al, 2011;Xu et al, 2011;Yuan et al, 2011;Cantrell et al, 2012;Song and Guo, 2012). In general, biochar produced from slow pyrolysis was found to have a considerably higher C (69.6%) content than that by the fast pyrolysis (49.3%) (Bruun et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Fundamental and molecular composition characteristics of biochars produced from sugarcane and rice crop residues and by-products

2016

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“…The impacts of recycling wastes also aim for soil water and soluble nutrient retention [8]. Biological charcoal or biochar is a product of 350-500 ºC pyrolysis of biomass waste [9,10] to achieve the degradation resistance [11,12], and is amended in degraded soil for soil improvement and agricultural production. For the improvement of degraded soil, the biochar amended soil showed significant nutrient uptake in wheat [13], and other economic plants in many countries [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Properties of Biochar Prepared from Acacia Wood and Coconut Shell for Soil Amendment

Pituya

Sriburi

Wijitkosum

2017

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Abstract. The biochar produced from the agricultural wastes was aimed to amend the extreme degraded soil. The properties of biochar prepared from Acacia wood and coconut shell were investigated by different pyrolysis conditions in order to identify the suitable initial biomass of biochar applied for sandy soil amendment. The slow pyrolysis was applied for preparing biochar under different conditions. The temperature was varied from 300, 400 and 500 o C meanwhile the pyrolysis times were varied to 1, 2 and 3 hours. The parameters indicating biochar property are SA, APD, elemental contents of C, H, O and N, pH, CEC, and WHC. The properties of Acacia biochar and coconut shell biochar were compared using paired T-test at 95% confident interval to analyze the significant difference. The results indicated that the types of the initial biomass and the pyrolysis conditions have an impact on the properties of biochar for both physical and chemical. The suitable temperature was 500 °C for 2 hours. The different types of biomass are significantly effect on the SA, C and O contents, pH, CEC and WHC of the prepared biochar (P<0.05). Properties of Acacia wood biochar indicate that it is more suitable than coconut shell biochar to be applied as sandy soil amendment due to its higher SA, higher CEC, and neutral pH. Meanwhile, coconut shell biochar also can be applied for the typical soil appropriate and increase crop yield.

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Thermal self-sustainability of biochar production by pyrolysis

Cited by 47 publications

References 23 publications

Bio-oil production by flash pyrolysis of sugarcane residues and post treatments of the aqueous phase

Bio-oil production by flash pyrolysis of sugarcane residues and post treatments of the aqueous phase

Fundamental and molecular composition characteristics of biochars produced from sugarcane and rice crop residues and by-products

Properties of Biochar Prepared from Acacia Wood and Coconut Shell for Soil Amendment

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