Co-pyrolysis of Rice Husk with Underutilized Biomass Species: A Sustainable Route for Production of Precursors for Fuels and Valuable Chemicals

Mohammed, Isah Yakub; Lim, Chun Hsion; Kazi, Feroz Kabir; Yusup, Suzana; Lam, Hon Loong; Abakr, Yousif Abdalla

doi:10.1007/s12649-016-9599-9

Cited by 23 publications

(14 citation statements)

References 39 publications

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“…From the reactor size and carrier gas flowrate reported by the authors, vapor residence was around 1.425 min (85 sec), which is long enough to result to severe secondary cracking of the pyrolysis vapor at such a high temperature. Some classical studies on the pyrolysis of Napier grass have also been reported by our research group recently (Mohammed et al, 2015b;Lim et al, 2015, Mohammed et al, 2016a, 2016b, 2016d, Lim et al, 2016. To date, no study on pyrolysis of Napier grass is available in the literature that deals with collective examination of pyrolysis temperature, heating rate, inert gas flowrate on the products distribution and composition.…”

Section: Introductionmentioning

confidence: 80%

“…Characteristic of NGS used in this study is summarized in been reported that mineral composition of biomass has great influence on both product yield and bio-oil composition (Mohammed et al, 2016b). Most researchers employed x-ray fluorescence (XRF), energy dispersive x-ray (EDX) in determining the mineral composition of biomass.…”

Section: Feed Stock Characteristicsmentioning

confidence: 99%

“…Lignocellulosic biomass such as forest residues, agro-wastes, energy grasses, aquatic plants, algae, continues to again attention as a suitable alternative energy source. They are non-food materials and consist carbon, which can be converted into high-grade fuel or fuel precursor, biochemicals and other valuable product (Mohammed et al, 2016a;2016b). However, biofuel from these materials is generating another concern.…”

Section: Introductionmentioning

confidence: 99%

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Valorization of Napier grass via intermediate pyrolysis: Optimization using response surface methodology and pyrolysis products characterization

Mohammed

Abakr

Yusup

et al. 2017

Journal of Cleaner Production

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This study presents first optimization report on pyrolysis oil derived from Napier grass. Effects of temperature, heating rate and nitrogen flow rate on the intermediate pyrolysis of Napier grass biomass in a vertical fixed-bed tubular reactor were investigated collectively. Response surface methodology with central composite design was used for modelling the process and optimization of the process variables. Individual second order polynomial model was found to be adequate in predicting bio-oil, bio-char and non-condensable gas yield. The optimum bio-oil yield of 50.57 wt% was recorded at 600 o C, 50 o C/min and 5 L/min nitrogen flow. The bio-oil obtained throughout this study was two-phase liquid, organic and aqueous phase. The bio-oil, bio-char and non-condensable gas were characterized using standard analytical techniques. The results revealed that the organic phase consists of hydrocarbons and various benzene derivatives, which can be further processed into fuels and valuable chemicals. The aqueous phase was predominantly water, acids, ketones, aldehydes and some phenolics and other water-soluble organics. The non-condensable gas was made up high hydrogen/carbon monoxide ratio suitable Page 2 of 37 for liquid fuel synthesis via Fischer-Tropsch Synthesis. The bio-char was a porous carbonaceous material with high energy content, which can be applied as a solid fuel, adsorbent or source of biofertilizer. This study demonstrated that Napier grass biomass is a viable feedstock for production of high-value bioenergy precursors.

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Section: Introductionmentioning

confidence: 80%

Section: Feed Stock Characteristicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Valorization of Napier grass via intermediate pyrolysis: Optimization using response surface methodology and pyrolysis products characterization

Mohammed

Abakr

Yusup

et al. 2017

Journal of Cleaner Production

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“…Although the intensity of the modified ZSM-5 decreased with increased NaOH concentration. This observation shows a loss of crystallinity due to desilication, which could also be linked to the formation of mesoporous structures in the material [34,35]. Physisorption analysis (Figure 3) of ZSM-5 displayed a type I isotherm according to the IUPAC classification.…”

Section: Characteristics Of Catalystsmentioning

confidence: 96%

In-situ Upgrading of Napier Grass Pyrolysis Vapour Over Microporous and Hierarchical Mesoporous Zeolites

Mohammed

Abakr

Kazi

2017

Waste Biomass Valor

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This study presents in-situ upgrading of pyrolysis vapour derived from Napier grass over microporous and mesoporous ZSM-5 catalysts. It evaluates effect of process variables such catalyst-biomass ratio and catalyst type in a vertical fixed bed pyrolysis system at 600 o C, 50 o C/min under 5 L/min nitrogen flow. Increasing catalyst-biomass ratio during the catalytic process with microporous structure reduced production of organic phase bio-oil by approximately 7.0 wt%. Using mesoporous catalyst promoted nearly 4.0 wt% higher organic yield relative to microporous catalyst, which translate to only about 3.0 wt% reduction in organic phase compared to the yield of organic phase from noncatalytic process. GC-MS analysis of bio-oil organic phase revealed maximum degree of deoxygenation of about 36.9 % with microporous catalyst compared to the mesoporous catalysts, which had between 39 and 43 %. Mesoporous catalysts promoted production olefins and alkanes, normal phenol, monoaromatic hydrocarbons while microporous catalyst favoured the production of alkenes and polyaromatic hydrocarbons. There was no significant increase in the production of normal phenols over microporous catalyst due to its inability to transform the methoxyphenols and methoxy aromatics. This study demonstrated that upgrading of Napier grass pyrolysis vapour over mesoporous ZSM-5 produced bio-oil with improved physicochemical properties.

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“…Pyrolysis is regarded as promising technology for the production of bio-oils from biomass feedstock [1][2][3][4][5][6]. However, the bio-oils are viscous, highly oxygenated, acidic, chemically unstable, have higher water content and low H/C ratios [7].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Gasoline Range Hydrocarbons by Catalytic Co-pyrolysis of Rice Husk with Low Density Polyethylene (LDPE) Using Zeolite Socony Mobil#5(ZSM-5)

Binnal

Mali

Karjekannavar

et al. 2019

Period. Polytech. Chem. Eng.

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In the present work, catalytic co-pyrolysis of rice husk with low density polyethylene (LDPE) was investigated to enhance the amount of gasoline range hydrocarbons in the bio-oil. Zeolite Socony Mobil#5(ZSM-5) was used as catalyst. The specific surface area, pore volume and the average pore size of ZSM-5 were evaluated to be 418.041 m2/g, 0.227 cc/g and 1.628 nm respectively. Optimum temperature for obtaining highest bio-oil yield for non-catalytic co-pyrolysis was 600 °C, resulting in yield of 51.26 %. For catalytic co-pyrolysis, the optimum temperature was 500 °C with a bio-oil yield of 38.87 %. H/C ratio of gasoline range hydrocarbon oil obtained by catalytic co-pyrolysis was 1.21, while the oxygen content was 2.51 %.The results of GC HRMS revealed that, the gasoline range hydrocarbon oil obtained by catalytic co-pyrolysis contained 17.65 % Cycloalkanes, 6.131 % alcohols, 31.75 % esters and 32.68 % alkenes.

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Co-pyrolysis of Rice Husk with Underutilized Biomass Species: A Sustainable Route for Production of Precursors for Fuels and Valuable Chemicals

Cited by 23 publications

References 39 publications

Valorization of Napier grass via intermediate pyrolysis: Optimization using response surface methodology and pyrolysis products characterization

Valorization of Napier grass via intermediate pyrolysis: Optimization using response surface methodology and pyrolysis products characterization

In-situ Upgrading of Napier Grass Pyrolysis Vapour Over Microporous and Hierarchical Mesoporous Zeolites

Enhancing Gasoline Range Hydrocarbons by Catalytic Co-pyrolysis of Rice Husk with Low Density Polyethylene (LDPE) Using Zeolite Socony Mobil#5(ZSM-5)

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