Improvement of Charcoal Yield and Quality by Two-Step Pyrolysis on Rice Husks

Cheng, Xu; Tang, Yijing; Wang, Biao; Jiang, Jianming

doi:10.1007/s12649-016-9736-5

Cited by 15 publications

(12 citation statements)

References 36 publications

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“…c Retort with indirect heating using pyrolysis gases [93] high-temperature value-added biochar feedstocks. In the same study [91], the authors demonstrated the energy balance of their study for drying and pyrolysis, revealing that 12.5 MJ/kg energy was required for swine solids and 0.5 MJ/kg for blended material to obtain the desired value-added biochar, as mentioned in Table 2.…”

Section: Energy Required For the Production Of Biocharmentioning

confidence: 92%

“…Those researchers found a 50% biochar yield by using various feedstocks for reactor temperatures ranging from 330 to 650 °C, where the time required for flash carbonization was < 30 min. A two-step pyrolysis process was developed by Cheng et al [91] to improve the biochar yield. With this process, the biochar yield was 39.3% at 600 °C.…”

Section: Novel Processesmentioning

confidence: 99%

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Comprehensive review on production and utilization of biochar

2019

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The on-farm burning of crop residues and biomass results in numerous environmental issues and affects human beings. Crop residues have considerable energy potential if utilized appropriately. Crop residues can be converted into biochar through thermo-chemical routes; conversion helps in the managing and handling of biomass. Biochar reactors usually operate at temperatures between 400 and 600 °C with fixed carbon contents ranging from 60 to 85%. The application of this biochar to soil improves the physiochemical characteristics of soil because biochar is rich in organic carbon content, which makes the soil more fertile and acts as a carbon sequestration agent over the long term. Biochar itself is considered a source nutrient and can alter the soil nutrient pools and availability. Biochar applied up to 10 cm depth of soil may decrease the denitrification potential and lower N 2 O emission, greatly controlling leaching of mobile nutrients such as potassium, thus improving water use efficiency, nutrient availability and plant growth. Furthermore, it reduces the leaching of nitrogen into the groundwater and increases the water retention and cation-exchange capacity while moderating the soil's acidity, resulting in improved soil fertility. This article discusses different biochar production processes and various feedstocks and characteristics of biochar. The factors affecting biochar production and advantages of the utilization of biochar in soil are also reviewed.

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Section: Energy Required For the Production Of Biocharmentioning

confidence: 92%

Section: Novel Processesmentioning

confidence: 99%

Comprehensive review on production and utilization of biochar

2019

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“…The tree pruning residue generates a considerable amount of forest biomass, which can be harnessed energetically as solid fuel, no longer being an environmental liability, leading to economic and environmental gains of interest to society (Pedrosa et al, 2019). In this context, pyrolysis and briquetting are highlighted as a process of utilization of lignocellulosic residues derived from biomass, making it possible to use them as raw material in the substitution of firewood for an equivalent product (Cheng et al, 2018). The use of this type of waste is advantageous, since it is a renewable energy source, thus representing an alternative to traditional and polluting fossil fuels derived from oil (Cheng et al, 2018;Pedrosa et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Activated charcoal production from tree pruning in the Amazon region of Brazil for the treatment of gray water

Pedroza¹,

Neves²,

Paz³

et al. 2021

JART

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The objective of this work was to obtain, through the tree pruning pyrolysis, coal to be used in the removal of pollutants present in gray waters. The coal obtained during the process was used in a gray water filtration column and dye adsorption test. In this investigation it was proposed the treatment of gray water by the following series steps: (a) coagulation/ flocculation, (b) decantation, (c) sand filtration and (d) coal filtration column. The maximum coal yield was 60.10% obtained at 360 ºC and heating rate of 30 ºC/min. The gray water polishing using the coal obtained from the tree pruning pyrolysis process was efficient in the removal of the studied analytical parameters. For turbidity, COD, total solids and residual chlorine parameters, the removal values were 99, 98, 71 and 100 %, respectively. The charcoal from the filtration column was responsible for removing organ matter of gray water.

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“…Natural materials and buffer materials can be obtained from agricultural waste such as oil palm empty fruit bunches compost and rice husks. Oil palm empty fruit bunches are generally processed as compost (Krishnan et al, 2017;Trisakti et al, 2017), and rice husks are processed into rice husk charcoal (Teo et al, 2016;Cheng et al, 2018). The use of agricultural waste will support the realization of sustainable agriculture and zero waste in agriculture.…”

Section: Introductionmentioning

confidence: 99%

Growth and yield performance of maize at red-yellow podzolic acid soil after oil palm empty fruit bunches compost and rice husk charcoal application

Mardhiana

Apriyani

Adiwena

et al. 2020

J.Degrade.Min.Land Manage.

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On acid soils, maize growth cannot be optimal because of the high content of Al, Fe, Mg, and Zn, which has the potential to poison plants. Several nutrients such as P, Cu, and S are also available in small quantities for plants, thus inhibiting growth. This study aimed to determine the effectiveness of oil palm empty fruit bunches compost and rice husk charcoal in increasing the growth and yield of maize on red-yellow podzolic acid soils. Bonanza F1 varieties were planted and treated with (T1) 5 t ha-1 of oil palm empty fruit bunches compost; (T2) 10 t ha-1 of oil palm empty fruit bunches compost; (T3) 5 t ha-1 rice husk charcoal; (T4) 10 t ha-1 rice husk charcoal; and (T5) 5 t ha-1 of oil palm empty fruit bunches compost + 5 t ha-1 of rice husk charcoal, and control plants were not given any treatment. The results showed that all treatments had a better and significantly different effect than the control plants. The application of oil palm empty fruit bunches compost and rice husk charcoal could boost plants height (149.75% - 289.88%), stems diameter (124.10% - 204.62%), number of leaves (131.01% - 223.26%), plants fresh weight (204.14% - 342.25 %), plants dry weight (136.77% - 165.76%), weight of maize cobs (178.77% - 292.72%), weight of maize cobs without maize husks (158.27% - 233.03%), maize cobs length (112.44% - 147.14%), maize cobs diameter (117.16% - 187.79%), and the weight of 100 maize kernels (110.92% - 201.72%). Among all treatments, the T5 treatment (5 t ha-1 of oil palm empty fruit bunches compost + 5 t ha-1 rice husk charcoal) was the best because it consistently gave the highest yields on all observed variables.

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Improvement of Charcoal Yield and Quality by Two-Step Pyrolysis on Rice Husks

Cited by 15 publications

References 36 publications

Comprehensive review on production and utilization of biochar

Comprehensive review on production and utilization of biochar

Activated charcoal production from tree pruning in the Amazon region of Brazil for the treatment of gray water

Growth and yield performance of maize at red-yellow podzolic acid soil after oil palm empty fruit bunches compost and rice husk charcoal application

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