Production of Stable Biomass Pyrolysis Oils Using Fractional Catalytic Pyrolysis

Agblevor, Foster A.; Mante, Ofei D.; Abdoulmoumine, Nourredine; McClung, R.

doi:10.1021/ef1004144

Cited by 67 publications

(68 citation statements)

References 34 publications

(78 reference statements)

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“…In general catalytic pyrolysis tends to decrease the yield of liquid products because of cracking of the organic fraction [35][36][37][38][39], the same decrease in liquid yield was observed in these studies, but the decrease appeared to be less severe compared to woody biomass pyrolysis using HZSM-5 zeolite and red mud catalysts Yathavan and Agblevor [35] The temperature increase appeared to have minimal effect on the production of pyrolytic water from the organic liquids by the sand, instead it produced some gases. In contrast, the red mud pyrolysis converted a large fraction of the organic liquid products into pyrolytic water and thus reducing the organic liquid yield.…”

Section: Omws Pyrolysis Productsmentioning

confidence: 99%

Pyrolytic Conversion of Olive Mill Wastewater Sludge to Biofuels Using Red Mud as Catalyst

Agblevor¹,

Abdellaoui²,

Halouani³

et al. 2017

IJEPE

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Abstract:Olive mill wastewater sludge (OMWS) is an environmental pollutant in olive oil industry. The problem stems from the strong odor and poor biodegradability of OMWS because of its high phenolic compounds. In most Mediterranean countries, olive mill wastewater is stored in evaporation ponds and the residual sludge is landfilled for disposal. To address this environmental pollution problem, fluidized bed catalytic pyrolysis of OMWS was developed to produce pyrolysis liquids that are stable, low viscosity (5-7 cP), neutral pH (6-7), and high higher heating value (41 MJ/kg). The pyrolysis was conducted at 400-500°C in a red mud catalyst bed. The yields of the organic fraction were 29-35 mass%; char/coke yield was 20-29 mass%; and gas yield was 24-37 mass%. The 13 C NMR and GC/MS analyses of the liquid products showed predominance of aliphatic hydrocarbons and small fractions of aromatic hydrocarbons and ketones. The composition of these liquid products is in sharp contrast with most lignocellulosic biomass pyrolysis products which are normally rich in aromatic compounds and have very low aliphatic product content. In the absence of the red mud catalyst, the liquid product was viscous and contained acidic compounds.

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Section: Omws Pyrolysis Productsmentioning

confidence: 99%

Pyrolytic Conversion of Olive Mill Wastewater Sludge to Biofuels Using Red Mud as Catalyst

Agblevor¹,

Abdellaoui²,

Halouani³

et al. 2017

IJEPE

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“…TAN number is 41 (compared to 90 for raw bio-oil). [198,199] BFB with catalyst bed Beta, Y, ZSM-5, Mordenite…”

Section: Hzsm-5 At 450-500˚cmentioning

confidence: 99%

A review of recent laboratory research and commercial developments in fast pyrolysis and upgrading

Butler

Devlin

Meier³

et al. 2011

Renewable and Sustainable Energy Reviews

427

252

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Publication date 2011-10 Publication informationRenewable and Sustainable Energy Reviews, 15 (8): 4171-4186Publisher Elsevier Item record/more information http://hdl.handle.net/10197/5976 Publisher's statementThis is the author's version of a work that was accepted for publication in Renewable and Sustainable Energy Reviews. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Renewable and Sustainable Energy Reviews (VOL 15, ISSUE 8, (2011) ABSTRACT Robust alternative technology choices are required in the paradigm shift from the current crude oil-reliant transport fuel platform to a sustainable, more flexible transport infrastructure. In this vein, fast pyrolysis of biomass and upgrading of the product is deemed to have potential as a technology solution. The objective of this review is to provide an update on recent laboratory research and commercial developments in fast pyrolysis and upgrading techniques. Fast pyrolysis is a relatively mature technology and is on the verge of commercialisation. While upgrading of biooils is currently confined to laboratory and pilot scale, an increased understanding of upgrading processes has been achieved in recent times.

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“…Microwave Pyrolysis Table 1 -TAN values for conventional and microwave pyrolysis Table 1 shows the TAN values of the oils obtained from conventional pyrolysis [27,28,29] and from the microwave pyrolysis carried out in this study. It is difficult to ascertain differences in the chemistry of the liquid products for TAN values above 30, and bio-oils that can be used without refinement need to have TAN values <5.…”

Section: Conventional Pyrolysismentioning

confidence: 99%

Microwave Pyrolysis of Biomass: Control of Process Parameters for High Pyrolysis Oil Yields and Enhanced Oil Quality

et al. 2015

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The oil yield and quality of pyrolysis oil from microwave heating of biomass was established by studying the behaviour of Larch in microwave processing. This is the first study in biomass pyrolysis to use a microwave processing technique and methodology that is fundamentally scalable, from which the basis of design for a continuous processing system can be derived to maximise oil yield and quality. It is shown systematically that sample size is a vital parameter that has been overlooked by previous work in this field. When sample size is controlled the liquid product yield is comparable to conventional pyrolysis, and can be achieved at an energy input of around 600 kWh/t. The quality of the liquid product is significantly improved compared to conventional pyrolysis processes, which results from the very rapid heating and quenching that can be achieved with microwave processing. The yields of Levoglucosan and phenolic compounds were found to be an order of magnitude higher in microwave pyrolysis when compared with conventional fast pyrolysis. Geometry is a key consideration for the development of a process at scale, and the opportunities and challenges for scale-up are discussed within this paper.

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Production of Stable Biomass Pyrolysis Oils Using Fractional Catalytic Pyrolysis

Cited by 67 publications

References 34 publications

Pyrolytic Conversion of Olive Mill Wastewater Sludge to Biofuels Using Red Mud as Catalyst

Pyrolytic Conversion of Olive Mill Wastewater Sludge to Biofuels Using Red Mud as Catalyst

A review of recent laboratory research and commercial developments in fast pyrolysis and upgrading

Microwave Pyrolysis of Biomass: Control of Process Parameters for High Pyrolysis Oil Yields and Enhanced Oil Quality

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