Challenges in the design and operation of processes for catalytic fast pyrolysis of woody biomass

Yıldız, Güray; Ronsse, Frederik; Duren, Ruben van; Prins, Wolter

doi:10.1016/j.rser.2015.12.202

Cited by 146 publications

(98 citation statements)

References 47 publications

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“…Several layouts for the pyrolysis process have also been proposed to reach a global self-sustainable performance from an energetic point of view [3,18,19]. In a previous work developed in our group, both oxygen content and acidity of bio-oils were found to decrease in woody biomass pyrolysis carried out in an Auger reactor when low-cost materials, such as CaO/sand or CaOÁMgO/sand mixtures, were used as both in situ catalysts and heat carriers [20].…”

Section: Introductionmentioning

confidence: 99%

An integrated process for the production of lignocellulosic biomass pyrolysis oils using calcined limestone as a heat carrier with catalytic properties

Veses

Aznar

Callén

et al. 2016

Fuel

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Section: Introductionmentioning

confidence: 99%

An integrated process for the production of lignocellulosic biomass pyrolysis oils using calcined limestone as a heat carrier with catalytic properties

Veses

Aznar

Callén

et al. 2016

Fuel

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“…To increase the use of lignin, the Energy Research Center of the Netherlands (now ECN part of TNO, the Netherlands) developed the lignin biorefinery approach (LIBRA) fast‐pyrolysis process using bubbling fluidized bed reactor technology (de Wild et al, 2014). The total mass of pyrolysis products can compose up to 100% of the organic carbon (Bridgwater, 2012; Butler, Devlin, Meier, & McDonnell, 2011; Yildiz, Ronsse, van Duren, & Prins, 2016). In addition to the two‐phase lignin bio‐oil (45 wt/wt%), gas (20 wt/wt%), and char (35 wt/wt%) accumulate (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Limited life cycle and cost assessment for the bioconversion of lignin‐derived aromatics into adipic acid

Duuren

Wild

Starck

et al. 2020

Biotech & Bioengineering

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Lignin is an abundant and heterogeneous waste byproduct of the cellulosic industry, which has the potential of being transformed into valuable biochemicals via microbial fermentation. In this study, we applied a fast‐pyrolysis process using softwood lignin resulting in a two‐phase bio‐oil containing monomeric and oligomeric aromatics without syringol. We demonstrated that an additional hydrodeoxygenation step within the process leads to an enhanced thermochemical conversion of guaiacol into catechol and phenol. After steam bath distillation, Pseudomonas putida KT2440‐BN6 achieved a percent yield of cis, cis‐muconic acid of up to 95 mol% from catechol derived from the aqueous phase. We next established a downstream process for purifying cis, cis‐muconic acid (39.9 g/L) produced in a 42.5 L fermenter using glucose and benzoate as carbon substrates. On the basis of the obtained values for each unit operation of the empirical processes, we next performed a limited life cycle and cost analysis of an integrated biotechnological and chemical process for producing adipic acid and then compared it with the conventional petrochemical route. The simulated scenarios estimate that by attaining a mixture of catechol, phenol, cresol, and guaiacol (1:0.34:0.18:0, mol ratio), a titer of 62.5 (g/L) cis, cis‐muconic acid in the bioreactor, and a controlled cooling of pyrolysis gases to concentrate monomeric aromatics in the aqueous phase, the bio‐based route results in a reduction of CO2‐eq emission by 58% and energy demand by 23% with a contribution margin for the aqueous phase of up to 88.05 euro/ton. We conclude that the bio‐based production of adipic acid from softwood lignins brings environmental benefits over the petrochemical procedure and is cost‐effective at an industrial scale. Further research is essential to achieve the proposed cis, cis‐muconic acid yield from true lignin‐derived aromatics using whole‐cell biocatalysts.

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“…However, the thermal decomposition of lignocelluloses is a complex process consisting of a large number of consecutive reactions. In spite of the fact that the composition of the formed products can be controlled by several factors (such as the final temperature of the process, residence time, or heating rate of biomass) to some extent, it is very difficult to obtain the desired chemical compounds at a high yield [2]. Due to that, the obtained bio-oil or gaseous mixture cannot directly replace fuels produced using conventional methods.…”

Section: Introductionmentioning

confidence: 99%

Development of Heterogeneous Catalysts for Thermo-Chemical Conversion of Lignocellulosic Biomass

Grams

Ruppert

2017

Energies

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Lignocellulosic biomass is one of the most attractive renewable resources that can be used for the production of biofuels and valuable chemicals. However, problems associated with the low efficiency of its conversion and poor selectivity to desired products remain. Therefore, in recent years researchers have focused on the design of highly active and stable catalysts, enabling an increase in the effectiveness of lignocellulosic biomass processing. This work is devoted to the presentation of the latest trends in the studies of the heterogeneous catalysts used in thermo-chemical conversion of such feedstock. The systems applied for the production of both bio-oil and hydrogen-rich gas are discussed. Zeolites, mesoporous materials, metal oxides, supported metal catalysts, and modifications of their structure are described. Moreover, the impact of the physicochemical properties of the presented catalyst on their catalytic performance in the mentioned processes is demonstrated.

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Challenges in the design and operation of processes for catalytic fast pyrolysis of woody biomass

Cited by 146 publications

References 47 publications

An integrated process for the production of lignocellulosic biomass pyrolysis oils using calcined limestone as a heat carrier with catalytic properties

An integrated process for the production of lignocellulosic biomass pyrolysis oils using calcined limestone as a heat carrier with catalytic properties

Limited life cycle and cost assessment for the bioconversion of lignin‐derived aromatics into adipic acid

Development of Heterogeneous Catalysts for Thermo-Chemical Conversion of Lignocellulosic Biomass

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