Influence of bed material coatings on the water-gas-shift reaction and steam reforming of toluene as tar model compound of biomass gasification

Kuba, Matthias; Havlik, F.; Kirnbauer, Friedrich; Hofbauer, Hermann

doi:10.1016/j.biombioe.2015.11.029

Cited by 65 publications

(44 citation statements)

References 27 publications

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“…Fresh olivine did show higher catalytic activity; however, on average only 24 % of 1H-indene was converted. Analogous to experiments conducted in a previous work using other hydrocarbons, such as toluene and C 2 H 4 [34], the calcium-rich bed particle coating of used olivine led to a significant increase in its catalytic activity. 1H-indene conversion of more than 70 % was achieved during these experiments.…”

Section: Discussionmentioning

confidence: 61%

“…Thus, an input concentration of CO of 50 % based on the dry gas volume (CO and N 2 ) into the reactor was supplied. The water-gas-shift reaction was also addressed in previous work [34]; however, since it occurs as follow-up reaction in steam reforming of hydrocarbons, results are also shown in the present work to address the complete reaction path.…”

Section: Test Reactionsmentioning

confidence: 55%

“…Since steam reforming of investigated hydrocarbons in this and previous work [34] was coupled with the water-gas-shift reaction, the influence of particle layers solely regarding this follow-up reaction was also addressed in this work to give a comprehensive overview:…”

Section: Test Reactionsmentioning

confidence: 99%

“…These tests are follow-up experiments from previous work, where the influence of such coatings was investigated for steam reforming of toluene and C 2 H 4 [34]. Both publications together give a comprehensive overview of the influence of calcium-rich bed particle layers on the reduction of tars and the product gas composition.…”

Section: Introductionmentioning

confidence: 99%

“…The formation of layers on bed particles can result in agglomeration, slagging, and deposit buildup [25,[28][29][30][31][32]. However, calcium-rich layers have shown a significant increase of the catalytic activity of bed particles [33][34][35][36] and are therefore highly desirable for gasification processes. Consequently, layer formation on bed particles has both positive and negative impacts on the gasification process.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Influence of coated olivine on the conversion of intermediate products from decomposition of biomass tars during gasification

Kuba

Kirnbauer

Hofbauer

2016

Biomass Conv. Bioref.

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Steam gasification of solid biomass in dual fluidized bed systems is a suitable technology for the production of chemicals, fuels for transportation, electricity, and district heating. Interaction between biomass ash and bed material leads to the development of Ca-rich bed particle layers. Furthermore, incomplete decomposition of biomass leads to the formation of tar components; among these are stable intermediate products such as 1H-indene and stable gaseous hydrocarbons such as methane. In this work, the influence of bed particle layers on the conversion of intermediate products such as 1H-indene and methane via steam reforming was investigated by conducting experiments in a lab-scale test rig. Satisfying conversion of 1H-indene into gaseous molecules (e.g., CO, CO 2 , H 2 ) was achieved with used, layered olivine, whereas fresh olivine showed significantly poorer performance. Since steam reforming was connected to the watergas-shift reaction for the tested hydrocarbons, investigations regarding carbon monoxide conversion in the presence of steam were conducted as well. Furthermore, a comparison of the influence of fresh and used bed material concerning the conversion of methane is presented, showing that methane is not affected by the bed material, independent of the presence of particle layers.

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Section: Discussionmentioning

confidence: 61%

Section: Test Reactionsmentioning

confidence: 55%

Section: Test Reactionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of coated olivine on the conversion of intermediate products from decomposition of biomass tars during gasification

Kuba

Kirnbauer

Hofbauer

2016

Biomass Conv. Bioref.

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Advanced dual fluidized bed steam gasification of wood and lignite with calcite as bed material

Benedikt

Fuchs

Schmid

et al. 2017

Korean J. Chem. Eng.

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Syngas for biorefineries from thermochemical gasification of lignocellulosic fuels and residues—5 years’ experience with an advanced dual fluidized bed gasifier design

Schmid

Benedikt

Fuchs

et al. 2019

Biomass Conv. Bioref.

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In many processes proposed for biorefineries, recycling procedures, and industrial or agricultural production processes, residue is generated which could be further transformed by thermochemical conversion via gasification. The technology of dual fluidized bed steam gasification is capable of producing a valuable product gas out of such residue. The generated nitrogen-free product gas can be used for heat and power production and is suitable for separating gases (e.g. hydrogen). However, if the product gas is cleaned, its use as syngas is more beneficial for manufacturing renewable chemical substances, like synthetic natural gas, methanol, Fischer-Tropsch liquids, or mixed alcohols. This paper presents the results of experimental research from gasification test runs of different biogenic fuels, carried out with an advanced 100 kW pilot plant over the last 5 years at TU Wien. The focus is to provide an overview of measured results validated by mass and energy balances and to present key calculated performance indicating key figures of the test runs. In this way, the influence of various operational parameters and the composition of the product gas are evaluated. The presented results form the basis for the proper design of suitable gas-cleaning equipment. Subsequently, the clean syngas is available for several synthesis applications in future biorefineries.

show abstract

Influence of bed material coatings on the water-gas-shift reaction and steam reforming of toluene as tar model compound of biomass gasification

Cited by 65 publications

References 27 publications

Influence of coated olivine on the conversion of intermediate products from decomposition of biomass tars during gasification

Influence of coated olivine on the conversion of intermediate products from decomposition of biomass tars during gasification

Advanced dual fluidized bed steam gasification of wood and lignite with calcite as bed material

Syngas for biorefineries from thermochemical gasification of lignocellulosic fuels and residues—5 years’ experience with an advanced dual fluidized bed gasifier design

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