Kinetic and experimental characterizations of biomass pyrolysis in granulated blast furnace slag

Yao, Xin; Yu, Qingbo; Han, Zhengri; Xie, Huaqing; Duan, Wenjun; Qin, Qin

doi:10.1016/j.ijhydene.2018.03.173

Cited by 18 publications

(13 citation statements)

References 32 publications

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“…33 Approximately, 1 million tons of SS are produced per year in the UK, and this steel industry waste is a nonporous, strong, and dense material having a high resistance to crushing. 34 Circulation fluidized bed (CFB) and bubbling fluidized bed (BFB) are considered scalable and robust pyrolyzers and are mainly applied in commercial and demonstration pyrolysis units. However, both CFB and BFB showed a significant problem related to the solid fraction attrition.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Iron is produced in a blast furnace, producing the blast furnace slag as a byproduct while the SS is a waste from the steel-making process using an electric arc furnace or a basic oxygen furnace . Approximately, 1 million tons of SS are produced per year in the UK, and this steel industry waste is a nonporous, strong, and dense material having a high resistance to crushing …”

Section: Introductionmentioning

confidence: 99%

“…The present study investigated the utilization of SS as a sacrificial catalyst in TCR experiments, producing an upgraded bio-oil with superior fuel physical and chemical properties. A few studies tested the application of blast furnace slag (via thermogravimetric and continuous fixed bed pyrolysis) and SS (via thermogravimetric pyrolysis) for bio-oil production. ,,, Furthermore, oil palm mesocarp fiber pyrolysis over SS-derived zeolites, pyrolysis of oil sludge with SS and syngas production, and tar removal from biomass over SS-supported nickel catalysts were investigated. , However, no references to the use of pure SS as a catalyst in a thermocatalytic reactor were found in the literature.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Upgrading of Bio-Oil from the Intermediate Pyrolysis of Waste Biomass Using Steel Slag as a Catalyst

Santos

Jahangiri

Bashir

et al. 2020

ACS Sustainable Chem. Eng.

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Catalytic pyrolysis is a complex system where the selection of an efficient, cheap, abundant, and stable catalyst is vital to upgrade pyrolysis products to biofuels. Steel slag (SS) can be considered as an inexpensive catalyst, making it a very economical option. SS has a high content of calcium, iron, and magnesium, making this solid compound catalytically active. This study investigated the utilization of SS as a sacrificial catalyst in pyrolysis experiments using a thermocatalytic reforming (TCR) process to produce an upgraded bio-oil and syngas. In the first part of this work, SS was mixed with sugarcane bagasse (SB) and oat hulls (OH) biochar (in different trials) in the postreformer at different ratios (0, 30, 70, and 100 wt % of SS). In the second part, SS (powder) was pelletized directly with raw OH at different ratios (0, 10, 20, and 30 wt % of SS in the feed composition) and introduced into a pyrolysis reactor. The introduction of SS into SB in the reformer improved the higher heating value (HHV) from 29.1 MJ/kg (0 wt % of SS) to 35.5 MJ/kg (100 wt % of SS). Introducing 30 wt % of SS into OH in the feed showed a higher calorific value and lower acidity, viscosity, and density in comparison with using SS with different ratios in the reformer. The use of SS as a catalyst was found to significantly improve the quality and the properties of bio-oil and syngas, revealing an innovative pathway for its use as an inexpensive sacrificial catalyst for biofuel production via the TCR process.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Upgrading of Bio-Oil from the Intermediate Pyrolysis of Waste Biomass Using Steel Slag as a Catalyst

Santos

Jahangiri

Bashir

et al. 2020

ACS Sustainable Chem. Eng.

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“…32,33 Sun et al 34 explored the kinetic characteristics of CO formation and during co-pyrolysis of sludge and slag. Yao et al 35 calculated activation energy during copyrolysis of straw and blast furnace slag via thermogravimetric analysis (TGA), with the value of 65.96 kJ mol −1 , and the activation energy reduced with the increase of the heating rate, indicating that the furnace slag displayed both a heat carrier and catalyst. Trubetskaya et al 36 and Zhang et al 37 investigated the effect of potassium on the char and tar generation during co-pyrolysis of forest residues with the metal element, and the apparent activation energy of carbon gasification was reduced to 12.1 kJ mol −1 significantly.…”

Section: Introductionmentioning

confidence: 99%

“…Besides clarifying the product composition, thermal analysis kinetics and thermokinetics have been investigated for the reactor design. , Sun et al explored the kinetic characteristics of CO formation and during co-pyrolysis of sludge and slag. Yao et al . calculated activation energy during co-pyrolysis of straw and blast furnace slag via thermogravimetric analysis (TGA), with the value of 65.96 kJ mol –1 , and the activation energy reduced with the increase of the heating rate, indicating that the furnace slag displayed both a heat carrier and catalyst.…”

Section: Introductionmentioning

confidence: 99%

Energy Recovery of Furnace Slag from Steel Industrial and Thermochemical Conversion of Lignocellulosic Biomass: Thermal Behavior and Kinetic Analysis on Cellulose under Fast Pyrolysis Conditions

Zhang

et al. 2019

Energy Fuels

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The combination of biomass pyrolysis with heat recovery from molten slag is a feasible and economically applicable technology. The thermal behavior and kinetic analysis on cellulose (CE) with furnace slag under a fast heating rate were investigated. An iso-conventional method was used to obtained kinetic parameters for primary gaseous product formation. A positive synergistic effect was observed from the formation of gaseous products, with the reduction of the CO 2 content to the lowest value of 16.71 vol %. The lower heating value of the gaseous products reached the lowest value of 7.9 MJ m −3 at 30% mass ratio of slag. The activation energy of CO 2 , CO, CH 4 , and H 2 from CE was 40.49, 31.83, 78.67, and 21.82 kJ mol −1 . The samples with 30% mass ratio of slag presented the lowest activation energy for CO 2 with 12.32 kJ mol −1 and the highest activation energy for CO with 29.35 kJ mol −1 . The addition of furnace slag reduced the activation energy required for CO 2 , CO, and CH 4 , especially for CH 4 .

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Research progress of hydrogen production and CO₂ fixation in molten slag cooling process

Zhou,

Li,

Meng

et al. 2024

Carbon Neutralization

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Steel slag is a waste discharged from the iron and steel smelting process, which has the characteristics of large output, high temperature, complex chemical composition and poor stability. The application of steel slag in hydrogen production and CO2 fixation is of great significance for reducing energy consumption, obtaining renewable energy and fixing CO2 in the air. In this paper, the research progress of high‐temperature sensible heat of steel slag used for hydrogen production and CO2 fixation at medium and low temperature is introduced, the reaction mechanism of different hydrogen production methods and the treatment path and direction of high‐efficiency hydrogen production in the future are deeply analyzed, and the steel slag used for CO2 fixation is discussed and summarized from the theory, effect and treatment mode of CO2 fixation. In the future, the research on the economic benefits of hydrogen production and CO2 fixation from steel slag is a major focus, which can achieve economic benefits while utilizing steel slag resources.

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Kinetic and experimental characterizations of biomass pyrolysis in granulated blast furnace slag

Cited by 18 publications

References 32 publications

The Upgrading of Bio-Oil from the Intermediate Pyrolysis of Waste Biomass Using Steel Slag as a Catalyst

The Upgrading of Bio-Oil from the Intermediate Pyrolysis of Waste Biomass Using Steel Slag as a Catalyst

Energy Recovery of Furnace Slag from Steel Industrial and Thermochemical Conversion of Lignocellulosic Biomass: Thermal Behavior and Kinetic Analysis on Cellulose under Fast Pyrolysis Conditions

Research progress of hydrogen production and CO₂ fixation in molten slag cooling process

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Kinetic and experimental characterizations of biomass pyrolysis in granulated blast furnace slag

Cited by 18 publications

References 32 publications

The Upgrading of Bio-Oil from the Intermediate Pyrolysis of Waste Biomass Using Steel Slag as a Catalyst

The Upgrading of Bio-Oil from the Intermediate Pyrolysis of Waste Biomass Using Steel Slag as a Catalyst

Energy Recovery of Furnace Slag from Steel Industrial and Thermochemical Conversion of Lignocellulosic Biomass: Thermal Behavior and Kinetic Analysis on Cellulose under Fast Pyrolysis Conditions

Research progress of hydrogen production and CO2 fixation in molten slag cooling process

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Research progress of hydrogen production and CO₂ fixation in molten slag cooling process