Influence of the Composition of Raw Bio-Oils on Their Valorization in Fluid Catalytic Cracking Conditions

Ibarra, Álvaro; Hita, Idoia; Arandes, José M.; Bilbao, Javier

doi:10.1021/acs.energyfuels.9b01527

Cited by 25 publications

(15 citation statements)

References 54 publications

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“…The influence of bio-oil composition on the product yields was carried out by comparing two different bio-oil derived from pine sawdust and poplar sawdust. 15 The product yields and qualities were different as the two bio-oils had different oxygen and water contents. Under this condition, the raw bio-oil should be hydrotreated to ensure the yields and qualities of FCC products.…”

Section: Introductionmentioning

confidence: 99%

“…This means that bio-oil should be hydrotreated before it is cocracked with VGO to guarantee the similar gasoline and diesel yields in an FCC. The influence of bio-oil composition on the product yields was carried out by comparing two different bio-oil derived from pine sawdust and poplar sawdust . The product yields and qualities were different as the two bio-oils had different oxygen and water contents.…”

Section: Introductionmentioning

confidence: 99%

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Multiperiod Design and Optimization of Coprocessing of Vacuum Gas Oil and Bio-oil Integrating Supply Fluctuations of Lignocellulosic and Algal Biomass

Yan

Qian

et al. 2021

Ind. Eng. Chem. Res.

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The coprocessing of bio-oil and vacuum gas oil has been demonstrated as a cost-effective way to utilize bioenergy. A multiperiod model is built to design and optimize of the coprocessing system by integrating monthly changes of lignocellulosic biomass production and algae growth rate. The case study showed that the optimal configurations of a coprocessing system with a minimized total annual cost can be attained with the proposed multiperiod model. The feed compositions of lignocellulosic and algal biomass for fast pyrolysis in each period were obtained by integrating the synergistic effect of copyrolysis of the two biomasses. Due to the relatively large capital investments of fast pyrolysis and algal growth process, the operational factors of the two processes were near 100% in all of the periods. A sensitivity analysis was also carried out to discuss the parameter effects. The proposed model not only can be used in the optimization of the coprocessing system but also can be adopted in bioenergy utilization.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multiperiod Design and Optimization of Coprocessing of Vacuum Gas Oil and Bio-oil Integrating Supply Fluctuations of Lignocellulosic and Algal Biomass

Yan

Qian

et al. 2021

Ind. Eng. Chem. Res.

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“…3,4 Among these, fast pyrolysis is the most appealing, given its limited environmental impact, the readiness of different pyrolysis technologies, and also the possibilities it offers for the subsequent valorization of the resulting products, and specifically the liquid product fraction: bio-oil. [5][6][7][8][9] Bio-oil is a highly complex and unstable mixture of oxygenated components, which can be classified into five main groups: (i) hydroxyaldehydes, (ii) hydroxyketones, (iii) sugars, (iv) carboxylic acids and (v) phenolics. 10 In addition, it has a high water (20-30 wt%) and oxygen content which, together with its viscosity, acidity and corrosiveness render bio-oil unsuitable for higher-value applications, like the production of biofuels or biochemicals.…”

Section: Introductionmentioning

confidence: 99%

“…The necessity to achieve a less-fossil-energy-dependent energetic scenario is driving increasing interest toward biomass as an alternative energy source. , At an industrial scale, the main routes for biomass conversion are fermentation, gasification, and fast pyrolysis. , Among these, fast pyrolysis is the most appealing, given its limited environmental impact, the readiness of different pyrolysis technologies, and also the possibilities it offers for subsequent valorization of the resulting products and specifically the liquid product fraction: bio-oil. − …”

Section: Introductionmentioning

confidence: 99%

In-Depth Analysis of Raw Bio-Oil and Its Hydrodeoxygenated Products for a Comprehensive Catalyst Performance Evaluation

Hita

Cordero-Lanzac

Kekäläinen

et al. 2020

ACS Sustainable Chem. Eng.

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Biomass pyrolysis liquids (bio-oils) unavoidably require catalytic hydrodeoxygenation (HDO) for their upgrading and stabilization for commercial usage. The complex composition of bio-oil constrains the fundamental kinetic understanding of the HDO. Here, we propose a multi-technique methodology to compositionally assess the complete spectrum of the HDO reactants and products, and then use it to pre-evaluate different catalysts in the HDO of a raw bio-oil obtained from black poplar. The used techniques are: micro chromatography (GC), GC with mass spectrometry (MS), bidimensional GC×GC/MS, elemental analysis, gel permeation chromatography, Karl-Fischer, thermogravimetric analysis, as well as Fourier ion cyclotron resonance mass spectrometry (FT-ICR/MS) using different ionization sources (ESI and APPI). The latter technique allows for the assessment of the heaviest and most refractory oxygenates in bio-oil, which have a pivotal role in the HDO catalyst performance. Three activated carbon-supported catalysts based on PtPd, NiW and CoMo mixed with a commercial HZSM-5 zeolite were used. We have been able to evaluate the multiple facets of catalyst performance: production of gases, catalytic coke, thermal lignin and most importantly, the aqueous and organic product fractions (hydrodeoxygenation of heavy species and production of light aromatics). The results of the detailed analysis methodology highlight their potential for the understanding of the HDO mechanism and for a detailed catalyst screening.

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“…Through co-feeding, positive synergies are created for preventing unwanted product formation, and catalyst deactivation is also mitigated. Coke formation occurs through a dual mechanism where oxygenates and hydrocarbons act as precursors in which water also plays a relevant role attenuating their evolution towards condensed coke structures [27].…”

Section: Introductionmentioning

confidence: 99%

A Hybrid FCC/HZSM-5 Catalyst for the Catalytic Cracking of a VGO/Bio-Oil Blend in FCC Conditions

et al. 2020

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The performance of a commercial FCC catalyst (designated as CY) and a physically mixed hybrid catalyst (80 wt.% CY and 20 wt.% HZSM-5-based catalyst, designated as CH) have been compared in the catalytic cracking of a vacuum gasoil (VGO)/bio-oil blend (80/20 wt.%) in a simulated riser reactor (C/O, 6gcatgfeed−1; t, 6 s). The effect of cracking temperature has been studied on product distribution (carbon products, water, and coke) and product lumps: CO+CO2, dry gas, liquified petroleum gases (LPG), gasoline, light cycle oil (LCO), heavy cycle oil (HCO), and coke. Using the CH catalyst, the conversion of the bio-oil oxygenates is ca. 3 wt.% higher, while the conversion of the hydrocarbons in the mixture is lower, yielding more carbon products (83.2–84.7 wt.% on a wet basis) and less coke (3.7–4.8 wt.% on a wet basis) than the CY catalyst. The CH catalyst provides lower gasoline yields (30.7–32.0 wt.% on a dry basis) of a less aromatic and more olefinic nature. Due to gasoline overcracking, enhanced LPG yields were also obtained. The results are explained by the high activity of the HZSM-5 zeolite for the cracking of bio-oil oxygenates, the diffusional limitations within its pore structure of bulkier VGO compounds, and its lower activity towards hydrogen transfer reactions.

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Influence of the Composition of Raw Bio-Oils on Their Valorization in Fluid Catalytic Cracking Conditions

Cited by 25 publications

References 54 publications

Multiperiod Design and Optimization of Coprocessing of Vacuum Gas Oil and Bio-oil Integrating Supply Fluctuations of Lignocellulosic and Algal Biomass

Multiperiod Design and Optimization of Coprocessing of Vacuum Gas Oil and Bio-oil Integrating Supply Fluctuations of Lignocellulosic and Algal Biomass

In-Depth Analysis of Raw Bio-Oil and Its Hydrodeoxygenated Products for a Comprehensive Catalyst Performance Evaluation

A Hybrid FCC/HZSM-5 Catalyst for the Catalytic Cracking of a VGO/Bio-Oil Blend in FCC Conditions

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