Fast pyrolysis oil from pinewood chips co-processing with vacuum gas oil in an FCC unit for second generation fuel production

Pinho, Andrea de Rezende; Almeida, Marlon B.B. de; Mendes, Fabio Leal; Casavechia, Luiz Carlos; Talmadge, Michael; Kinchin, Christopher; Chum, Helena L.

doi:10.1016/j.fuel.2016.10.032

Cited by 173 publications

(95 citation statements)

References 25 publications

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“…This is problematic for successful co-processing (blending) via hydrotreating but less so for co-processing via fluid catalytic cracking (FCC), which can be accomplished without physically mixing the bio-oil and petroleum fractions (Bezergianni, Dimitriadis, Kikhtyanin & Kubička, 2018). Fluid catalytic cracking is one of the main processes used in crude-oil refineries around the world to convert vacuum gas oil (VGO) or other heavy petroleum fractions into high-value products such as gasoline, liquefied petroleum gas (LPG), diesel-range light cycle oil (LCO) and heavy cycle oil (HCO) (Pinho, de Almeida, Mendes, Casavechia, Talmadge, Kinchin & Chum, 2017). A possible route for co-processing bio-oil in an oil refinery is shown using a block flow diagram in Figure 5.…”

Section: Bio-oil Co-processing In a Crude-oil Refinerymentioning

confidence: 99%

“…However, at a much lower concentration to VGO, crude or upgraded bio-oil can be directly injected into the FCC unit without prior hydrotreating. The FCC gasoline and LCO products are then hydrotreated to remove sulphur in compliance with fuel specifications (Pinho et al, 2017). A review of studies previously conducted on co-processing bio-oil with VGO is given below.…”

Section: Bio-oil Co-processing In a Crude-oil Refinerymentioning

confidence: 99%

“…% FPO, respectively. Furthermore, the successful demonstration of coprocessing crude bio-oil suggests that it would also be feasible to co-process upgraded bio-oil (Pinho et al, 2017). Lindfors and colleagues (2015) investigated the effect of upgrading crude bio-oil prior to coprocessing on coke and liquid product yields.…”

Section: Bio-oil Co-processing In a Crude-oil Refinerymentioning

confidence: 99%

See 2 more Smart Citations

Techno-economic and environmental analysis of bio-oil production from forest residues via non-catalytic and catalytic pyrolysis processes

Schalkwyk

Mandegari

Farzad

2020

Energy Conversion and Management

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Section: Bio-oil Co-processing In a Crude-oil Refinerymentioning

confidence: 99%

Section: Bio-oil Co-processing In a Crude-oil Refinerymentioning

confidence: 99%

Section: Bio-oil Co-processing In a Crude-oil Refinerymentioning

confidence: 99%

See 1 more Smart Citation

Techno-economic and environmental analysis of bio-oil production from forest residues via non-catalytic and catalytic pyrolysis processes

Schalkwyk

Mandegari

Farzad

2020

Energy Conversion and Management

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“…Kiel (Kiel, 2011) suggested the use of biomass for coal power plants. Potential users of torrefied biomass are suggested for refineries to produce bio-oil (Wang et al, 2016;De Rezende Pinho et al, 2017) and syngas producers (TRI, 2018). A considerable amount of studies, pilot-scale plants, patents and commercial efforts have been devoted to torrefaction and torrefied materials.…”

Section: Introductionmentioning

confidence: 99%

Properties of Torrefied U.S. Waste Blends

Zinchik

Kolapkar

et al. 2018

Front. Energy Res.

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Power generation facilities in the U.S. are looking for a potential renewable fuel that is sustainable, low-cost, complies with environmental regulation standards and is a drop-in fuel in the existing infrastructure. Although torrefied woody biomass, meets most of these requirements, its high cost, due to the use of woody biomass, prevented its commercialization. Industrial waste blends, which are also mostly renewable, are suitable feedstock for torrefaction, and can be an economically viable solution, thus may prolong the life of some of the existing coal power plants in the U.S. This paper focuses on the torrefaction dynamics of paper fiber-plastic waste blend of 60% fiber and 40% plastic and the characterization of its torrefied product as a function of extent of reaction (denoted by mass loss). Two forms of the blend are used, one is un-densified and the other is in the form of pellets with three times the density of the un-densified material. Torrefaction of these blends was conducted at 300 • C in the mass loss range of 0-51%. The torrefied product was characterized by moisture content, grindability, particle size distribution, energy content, molecular functional structure, and chlorine content. It was shown that although torrefaction dynamics is of the two forms differs significantly from each other, their properties and composition depend on the mass loss. Fiber content was shown to decrease relative to plastic upon the extent of torrefaction. Further, the torrefied product demonstrates a similar grinding behavior to Powder River Basin (PRB) coal. Upon grinding the fiber was concentrated in the smaller size fractions, while the plastic was concentrated in the larger size fractions.

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“…For example, co-feeding a blend of pyrolysis oil with VGO into a fluid catalytic cracking (FCC) pilot unit was reported to have caused excessive coke deposition [4] that eventually plugged the feed nozzle. [5] Numerous studies have been carried out with the intent of promoting deoxygenation reactions during fast pyrolysis to produce hydrocarbon-rich oil. [6] However, deoxygenation accompanied with the rejection of oxygen in forms of CO 2 and CO via decarboxylation and decarbonylation routes, [7] causing substantial carbon loss, occurs during fast pyrolysis (FP) and catalytic fast pyrolysis (CFP).…”

Section: Introductionmentioning

confidence: 99%

Hybridization of ZSM‐5 with Spinel Oxides for Biomass Vapour Upgrading

et al. 2020

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In this study, we report catalytic fast pyrolysis of biomass using multifunctional hybrid spinel‐oxide@zeolite catalysts prepared by using the steam‐assisted crystallization (SAC) method to create the mesoporous zeolite followed by urea hydrolysis of metal nitrates to deposit spinel‐oxides. This hybrid catalyst was quite effective in the deoxygenation of pinewood sawdust pyrolysis vapours, while avoiding over cracking of the lignin precursors, which are already ideal as chemical and fuel precursors. In the first step, multiple spinel oxides MgB2O4 (where B=Fe, Al, Ce, Ga, Cr) were screened as catalysts for the pyrolysis of pinewood sawdust and the resultant bio‐oil (bio‐oil on the water‐free basis) was assessed in terms of carbon efficiency, oxygen content and chemical composition. While all the tested spinel oxides deoxygenated the pyrolysis vapour, MgAl2O4 and MgFe2O4 were found to provide a well‐balanced deoxygenation degree and producing bio‐oil with acceptable carbon efficiency. Catalytic activity and product distribution were affected by the density and strength of the acid sites of the spinel oxides. Subsequently, CFP over MgFe2O4@ZSM5 and MgAl2O4@ZSM5 was investigated under similar condition. The better performance of the hybrid catalyst was attributed to the deposition of small particles of MgFe2O4 in the external surface of the zeolite. The presence of this spinel oxide on the external surface depolymerized bulky oxygenates to lighter fractions that could easily access the active sites within the mesoporous structure of the zeolite, thus providing the catalytic function needed for the oxygen removal after aromatic ring saturation.

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Fast pyrolysis oil from pinewood chips co-processing with vacuum gas oil in an FCC unit for second generation fuel production

Cited by 173 publications

References 25 publications

Techno-economic and environmental analysis of bio-oil production from forest residues via non-catalytic and catalytic pyrolysis processes

Techno-economic and environmental analysis of bio-oil production from forest residues via non-catalytic and catalytic pyrolysis processes

Properties of Torrefied U.S. Waste Blends

Hybridization of ZSM‐5 with Spinel Oxides for Biomass Vapour Upgrading

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