Pilot-Scaled Fast-Pyrolysis Conversion of Eucalyptus Wood Fines into Products: Discussion Toward Possible Applications in Biofuels, Materials, and Precursors

Matos, Mailson; Mattos, Bruno D.; Cademartori, Pedro Henrique González de; Lourençon, Tainise V.; Hansel, F. A.; Zanoni, P. R. S.; Yamamoto, Carlos Itsuo; Magalhães, Washington Luiz Esteves

doi:10.1007/s12155-020-10094-y

Cited by 16 publications

(3 citation statements)

References 49 publications

(52 reference statements)

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“…In turn, value recovery at the raw material acquisition phase, includes the development of bioactive compounds from agricultural waste [38]. Value recovery at the manufacturing phase includes obtaining chemicals of high added-value from the waste from ethanol production [57], creating new products from whey (a by-product from the manufacturing of dairy products) [61], recovery of biocompounds from black liquor (kraft paper production) [49]; recovery of omega-3 from fish oil [60]; production of chemicals, using fast pyrolysis, from eucalyptus fines [50]; production of biocellulose films from scraps of the commercial production of bandages [51], and biochar from coffee silverskin (from coffee processing units) [66]. Value recovery at the end-of-life phase, in turn, includes recovering phosphorus from eggshell [78] and recovering oil from spent coffee grounds (from coffee shops) [66].…”

Section: Value Recovery From Wastementioning

confidence: 99%

Current Panorama, Practice Gaps, and Recommendations to Accelerate the Transition to a Circular Bioeconomy in Latin America and the Caribbean

et al. 2022

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The rampant use of resources and the increasing risk of scarcity have been contributing to greater awareness regarding the need for maintaining resources in use for longer and the shift to renewable alternatives, in which perspective the concept of a circular bioeconomy (CBE) has been permeating the most diverse sectors. Therefore, the study's aims were manifold: identify (i) existing practices and initiatives, (ii) barriers and potential opportunities and (iii) existing gaps for advancing a circular bioeconomy in Latin America and the Caribbean (LAC) and (iv) provide recommendations aiming at the development of a circular bioeconomy (CBE) in the region. To that end, a systematic review of the existing academic literature was done, and reports from relevant non-peer reviewed sources were also consulted. CBE practices in LAC are concentrated in only a few of the countries in the region and very much revolve around recovering value from by-products and waste streams. There are a range of economic, technological, environmental, and social barriers. Opportunities for a CBE are mainly related to the use of waste as raw material (found abundantly in the countries being investigated) and the use of new techniques/technologies. The gaps between the current state and a successful CBE are related to policy, scaling-up, collaborations, and establishing efficient business models. Recommendations for a successful CBE in the region include greater engagement of public actors, investing and developing the local economy, establishing biorefineries and industrial parks, and finding new technological routes for bioresources.

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Section: Value Recovery From Wastementioning

confidence: 99%

Current Panorama, Practice Gaps, and Recommendations to Accelerate the Transition to a Circular Bioeconomy in Latin America and the Caribbean

et al. 2022

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“…Pyrolysis has been the technology of choice, for olive mill solid wastes (OMSWs) in [70] and [27] and for eucalyptus wood fines in [89], to yield bio-oil and biochar, the former thereafter being valorised to a whole range of platform chemicals. Alternately, by subjecting OMSWs to thermal pre-treatment followed by anaerobic digestion, phenol and biomethane can be obtained [124].…”

Section: Municipal and Industrial Solid Waste And Sewage Managementmentioning

confidence: 99%

Circular Bio-economy—Paradigm for the Future: Systematic Review of Scientific Journal Publications from 2015 to 2021

Govindarajan

2021

Circ.Econ.Sust.

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While ‘renewable’ is the keyword in a bioeconomy and resource conservation is the motivation behind a circular economy, a circular bioeconomy is one in which waste streams from renewable bio-resources are looped back into the technosphere—open-loop or closed-loop recycling or conversion from matter to energy. This systematic review brings together 385 publications from 2015 to 2021, originating from 50 countries and appearing in 150 journals, into a coherent account of the status quo of published research on circular bioeconomy. The numbers bear testimony to the growing interest in this field of research. Germany is the leading contributor to the scientific literature base (10%), while the Journal of Cleaner Production (9%) tops the list of journals in the fray. The methodology adopted has been clearly explained, and the discussion has been segmented into sub-sections and sub-sub-sections to do justice to the diversity of the nature of the publications. A little flexibility in organisation of the flow of the text has been availed of, to improve readability. The circular bioeconomy can be visualised as a set of ‘many through many to many’ relationships, enabling both economies of scale and scope in the longer run. This calls for extensive collaboration and cooperation among the numerous stakeholders involved. Several barriers will have to be overcome. Technology impact assessments and sustainability risk appraisals need to be carried out in order to ensure and convince stakeholders that they are on the right path. But as one knows and will appreciate, challenges lurk where there exist opportunities to be availed of, to replace the take-make-use-dispose paradigm of a linear economy to the grow-make-use-restore alternative. Graphical abstract

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“…Continuous, steady-state processes are easier to perform at a larger scale; however, relatively few pilot-scale facilities are available because the capital and operating costs are higher than those of laboratory systems and securing large quantities (100s of kg) of precommercial feedstock and catalyst is challenging. Pilot-scale units need to be flexible enough to investigate how to overcome technical barriers but the impact of feedstock variability and process conditions on process performance will likely be limited to a subset of parameters compared to what would be screened in smaller laboratory systems. − Nevertheless, pilot-scale catalytic biomass pyrolysis studies are critical for validating laboratory results to support technology scale-up and providing input from a scalable process for technoeconomic analyses that extrapolate technical feasibility and economic viability of advanced biofuels pathways to commercial scale. , …”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature on the Pilot-Scale Catalytic Pyrolysis of Loblolly Pine

2021

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A pilot-scale biomass catalytic pyrolysis unit with a nominal throughput of one tonne of biomass per day (1TPD) has been in operation since 2013 to investigate the process parameters that have the largest influence on biocrude yield, oxygen content, and chemical composition. A parametric study was conducted to investigate the effect of pyrolysis temperature, ranging from 433 to 581 °C, on biocrude yield and quality. A locally sourced loblolly pine feedstock and a commercially available, spray dried, nonzeolitic γ-Al2O3 catalyst were used in individual experiments conducted at each pyrolysis temperature to achieve a minimum of 4 h of steady-state continuous operation. Typically, 600–800 kg of biomass was fed over a 12-h period, with one experiment extended to almost 29 h (1144-kg biomass fed) and one experiment interrupted by a process upset after just 7 h (411-kg biomass fed). Comprehensive analysis of collected gas, liquid, and solid products were used to calculate carbon balances (77% to 107%) for each experiment. The biocrude yield ranged from 12 to 18 wt % C and, in general, decreased with increasing pyrolysis temperature. The average steady-state biocrude yield as a function of temperature translated to a biocrude production rate between 40 and 50 gallons per dry ton. The biocrude oxygen content varied between 21 and 31 wt %, on a dry basis, and as expected, decreased with increasing pyrolysis temperature. The identified components in the semivolatile biocrude products are mostly methoxyphenols and other multiphenolic compounds. The multiphenolic compounds are demethoxylated at pyrolysis temperatures above 500 °C, producing biocrudes with higher concentrations of monophenols and polycyclic aromatic hydrocarbons. The concentration of anhydrosugars, like levoglucosan in the biocrudes, decreased with increasing pyrolysis temperature from ∼15 to ∼1 vol %.

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Pilot-Scaled Fast-Pyrolysis Conversion of Eucalyptus Wood Fines into Products: Discussion Toward Possible Applications in Biofuels, Materials, and Precursors

Cited by 16 publications

References 49 publications

Current Panorama, Practice Gaps, and Recommendations to Accelerate the Transition to a Circular Bioeconomy in Latin America and the Caribbean

Current Panorama, Practice Gaps, and Recommendations to Accelerate the Transition to a Circular Bioeconomy in Latin America and the Caribbean

Circular Bio-economy—Paradigm for the Future: Systematic Review of Scientific Journal Publications from 2015 to 2021

Effect of Temperature on the Pilot-Scale Catalytic Pyrolysis of Loblolly Pine

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