Recovery of clean energy precursors from Bambara groundnut waste via pyrolysis: Kinetics, products distribution and optimisation using response surface methodology

Mohammed, Isah Yakub; Abakr, Yousif Abdalla; Hui, Jershen Nga Xing; Alaba, Peter Adeniyi; Morris, Kenobi Isima; Ibrahim, Mustapha Danladi

doi:10.1016/j.jclepro.2017.07.068

Cited by 54 publications

(11 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The utilization of carbon-neutral biochar will be one of the main ways to alleviate this issue. In addition, another advantage of biochar over fossils lies in its low sulfur and nitrogen contents which give it great potential to reduce the pollution 15 . Low temperature pyrolysis (LTP) and hydrothermal carbonization are two effective thermal chemistry approaches to improve fuel quality to accommodate coal-fired furnace 16,17 .…”

Section: Introductionmentioning

confidence: 99%

Comparative Evaluation of Hydrothermal Carbonization and Low Temperature Pyrolysis of Eucommia ulmoides Oliver for the Production of Solid Biofuel

Wang

Qiu

Zhu

et al. 2019

Sci Rep

View full text Add to dashboard Cite

This study evaluates the feasibility of two thermal pretreatments including hydrothermal carbonization (HTC) and low temperature pyrolysis (LTP) on the production of Eucommia ulmoides biochar. The waste wood of Eucommia ulmoides Oliver was pretreated and characterized for fuel applications. The results confirm that both LTP and HTC are promising processes for improving fuel properties. However, for the same char yield, the required temperature for HTC is lower than LTP, as the char yields of H 200 and L 300 were quite close (66.50% vs. 66.74%). The surface morphology is significantly different between the pyrolytic carbon and the hydrochar. In addition, it was found that the H/C and O/C ratios of H 300 were 0.82 and 0.21, respectively, and the H/C and O/C ratios of L 340 were 0.77 and 0.22, respectively. They were similar to that of sub-bituminous. Moreover, under the same reaction temperature, hydrochar showed better grindability, hydrophobicity, and reduction in inorganic content. Comparing the integrated combustion characteristic index ( S ), LTP process had the better performance within the lower temperature under 220 °C while HTC process performed better at temperature higher than 300 °C. The results reveal that HTC has the potential to produce solid carbonized products with better fuel quality.

show abstract

Section: Introductionmentioning

confidence: 99%

Comparative Evaluation of Hydrothermal Carbonization and Low Temperature Pyrolysis of Eucommia ulmoides Oliver for the Production of Solid Biofuel

Wang

Qiu

Zhu

et al. 2019

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The composition of aqueous phase pyrolytic oil used was obtained from the literature as reported by Mohammed et al [13]. The oil was produced at 600 o C from Napier grass (bone dried, 2.5 mm particle size) in a vertical fixed bed pyrolysis system.…”

Section: Methodsmentioning

confidence: 99%

Recovery of Ionic Liquid from Aqueous Phase Pyrolytic Oil: A Simulation Using ASPEN HYSYS V10

Mohammed

Abakr

Mshelia³

et al. 2021

African Journal of Engineering &Amp; Technology

Self Cite

View full text Add to dashboard Cite

Aqueous phase pyrolytic oil is generally considered less important and often discarded as a pyrolysis by-product due to lack of specific applications. Although, recent studies have proposed production of hydrogen via catalytic aqueous and steam reforming from this stream, however, these processes require complex system. Imidazole is one of the major components of aqueous phase pyrolytic oil which can be converted into different products. This study presents a new valorisation strategy of aqueous phase pyrolytic oil into renewable ionic liquid through simulation. A steady state process simulation for recovery of imidazole from aqueous phase pyrolytic oil and subsequent conversion into ionic liquid was developed using ASPEN HYSYS V10 ®. Effects of different operating variables such as feed flow rate, composition and temperature on the imidazole recovery, ionic liquid yield and composition were investigated. The simulation results revealed that high yield of renewable ionic liquid with physicochemical properties comparable to that of commercially available ionic liquids can be produced from aqueous phase pyrolytic oil. This product can be utilised for biomass refining since ionic liquid have been reported to selectively remove hemicellulose and lignin in many biomass related applications such as pre-treatment and characterization.

show abstract

“…RSM was used to determine optimum conditions in this study. This methodology is a mathematical method and used to model and optimise the dependent parameters obtained from experimental studies (Kadlimatti et al, 2019; Kılıç et al, 2014; Mohammed et al, 2017b). The main aim of using RSM is to take into account the independent variable factors that are thought to have an effect on the response dependent variable and to minimise the errors.…”

Section: Methodsmentioning

confidence: 99%

“…The bio-oil yield of 50.57 wt.% was obtained at 600°C, 50°C min −1 and 5 L min −1 nitrogen flow. They continued their studies by performing thermochemical analysis of Bambara groundnut shell (Mohammed et al, 2017b). The optimum bio-oil production yield of 36.49 wt.% was reported for the conditions of 600°C, 50°C min −1 and 11 L min −1 .…”

Section: Introductionmentioning

confidence: 99%

Optimisation of biomass catalytic depolymerisation conditions by using response surface methodology

et al. 2019

View full text Add to dashboard Cite

The aim of this study is to present the optimum operating conditions for reducing energy consumption in the process of obtaining bio-oil from the mixture of sawdust, waste lubricating oil, lime, and commercial catalyst. In the study where the catalytic pressureless depolymerisation (also called Katalytische Drucklose Verölung – KDV) was applied, the operating conditions were analysed with response surface methodology. According to the analysis of variance results, a mathematical model was obtained for specific product yield (bio-oil amount/energy consumption g kWe−1). Effects of temperature (260°C–290°C), catalyst rate (1–2 wt.%) and reaction time (0.5–1 h) were investigated. The optimum conditions for the three independent variables (temperature, catalyst rate, reaction time) were 279 ± 2°C, 2 wt.% and 0.5 h, respectively. Maximum specific product yield was obtained as 970.17 g kWe−1. While the reaction time was the most effective regarding the amount of bio-oil obtained at 1 kWe energy consumption, the temperature was found to be the least effective. In addition to these, bio-oil obtained under optimum conditions were characterised and compared with standard diesel specifications.

show abstract

Recovery of clean energy precursors from Bambara groundnut waste via pyrolysis: Kinetics, products distribution and optimisation using response surface methodology

Cited by 54 publications

References 34 publications

Comparative Evaluation of Hydrothermal Carbonization and Low Temperature Pyrolysis of Eucommia ulmoides Oliver for the Production of Solid Biofuel

Comparative Evaluation of Hydrothermal Carbonization and Low Temperature Pyrolysis of Eucommia ulmoides Oliver for the Production of Solid Biofuel

Recovery of Ionic Liquid from Aqueous Phase Pyrolytic Oil: A Simulation Using ASPEN HYSYS V10

Optimisation of biomass catalytic depolymerisation conditions by using response surface methodology

Contact Info

Product

Resources

About