scholarly journals Hydrogen from biomass: large-scale hydrogen production based on a dual fluidized bed steam gasification system

2011 ◽  
Vol 1 (1) ◽  
pp. 55-61 ◽  
Author(s):  
Stefan Müller ◽  
Martin Stidl ◽  
Tobias Pröll ◽  
Reinhard Rauch ◽  
Hermann Hofbauer
Keyword(s):  
Hydrogen Production ◽  
Fluidized Bed ◽  
Large Scale ◽  
Steam Gasification ◽  
Dual Fluidized Bed

Hydrogen production within a polygeneration concept based on dual fluidized bed biomass steam gasification

2018 ◽  
Vol 111 ◽  
pp. 320-329 ◽  
Author(s):  
Michael Kraussler ◽  
Matthias Binder ◽  
Philipp Schindler ◽  
Hermann Hofbauer
Keyword(s):  
Hydrogen Production ◽  
Fluidized Bed ◽  
Steam Gasification ◽  
Dual Fluidized Bed

Estimation of solids circulation rate and char transfer rate from gasifier to combustor in a dual fluidized-bed pilot plant for biomass steam gasification

Particuology ◽  
2019 ◽  
Vol 46 ◽  
pp. 22-29 ◽  
Author(s):  
M. Hafizur Rahman ◽  
Lius Daniel ◽  
Ujash Shah ◽  
Xiaotao Bi ◽  
John R. Grace ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Pilot Plant ◽  
Transfer Rate ◽  
Steam Gasification ◽  
Circulation Rate ◽  
Solids Circulation Rate ◽  
Dual Fluidized Bed

scholarly journals Dual fluidized bed steam gasification: Change of product gas quality along the reactor height

Energy ◽  
2019 ◽  
Vol 173 ◽  
pp. 1256-1272 ◽  
Author(s):  
A.M. Mauerhofer ◽  
J.C. Schmid ◽  
F. Benedikt ◽  
J. Fuchs ◽  
S. Müller ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Steam Gasification ◽  
Product Gas ◽  
Dual Fluidized Bed ◽  
Reactor Height

Hydrogen Production from a Victorian Brown Coal with in Situ CO2 Capture in a 1 kWth Dual Fluidized-Bed Gasification Reactor

2012 ◽  
Vol 51 (40) ◽  
pp. 13046-13053 ◽  
Author(s):  
Hui An ◽  
Tao Song ◽  
Laihong Shen ◽  
Lian Zhang ◽  
Bo Feng
Keyword(s):  
Hydrogen Production ◽  
Fluidized Bed ◽  
Brown Coal ◽  
Co2 Capture ◽  
Dual Fluidized Bed ◽  
In Situ Co2 Capture

Chemical-looping combustion of raw syngas from biomass steam gasification – Coupled operation of two dual fluidized bed pilot plants

Fuel ◽  
2014 ◽  
Vol 127 ◽  
pp. 178-185 ◽  
Author(s):  
Stefan Penthor ◽  
Karl Mayer ◽  
Stefan Kern ◽  
Hannes Kitzler ◽  
David Wöss ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Steam Gasification ◽  
Chemical Looping Combustion ◽  
Chemical Looping ◽  
Dual Fluidized Bed

CPFD simulations of an industrial-sized dual fluidized bed steam gasification system of biomass with 8 MW fuel input

2017 ◽  
Vol 190 ◽  
pp. 408-420 ◽  
Author(s):  
Stephan Kraft ◽  
Friedrich Kirnbauer ◽  
Hermann Hofbauer
Keyword(s):  
Fluidized Bed ◽  
Steam Gasification ◽  
Dual Fluidized Bed

scholarly journals Mixtures of Silica Sand and Calcite as Bed Material for Dual Fluidized Bed Steam Gasification

2017 ◽  
Author(s):  
Anna Magdalena Mauerhofer ◽  
Florian Benedik ◽  
Johannes Christian Schmid ◽  
Hermann Hofbauer
Keyword(s):  
Fluidized Bed ◽  
Steam Gasification ◽  
Silica Sand ◽  
Dual Fluidized Bed ◽  
Bed Material

scholarly journals CO2 gasification of biogenic fuels in a dual fluidized bed reactor system

2019 ◽  
Author(s):  
Anna Magdalena Mauerhofer ◽  
Stefan Müller ◽  
Florian Benedikt ◽  
Josef Fuchs ◽  
Alexander Bartik ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Pilot Plant ◽  
Alkali Metals ◽  
Alternative Fuels ◽  
Steam Gasification ◽  
Biomass Ash ◽  
Gasification Process ◽  
Product Gas ◽  
Dual Fluidized Bed ◽  
Shift Reaction

Abstract A 100 kWth dual fluidized bed steam gasification pilot plant has been developed at TU Wien to convert different types of biogenic fuels into a valuable product gas. In this paper, the conversion of different biogenic fuels in combination with the utilization of CO2 as alternative gasification agent was investigated in the mentioned pilot plant. For this purpose, five experimental campaigns were carried out aiming at the investigation of softwood as reference fuel, and rapeseed cake, bark and lignin as alternative fuels. Pure olivine as well as a mixture (90/10 wt%) of olivine and limestone were used as bed materials. The product gas compositions of the different biogenic fuels changed depending on the elemental composition of the biogenic fuels. Thus, a high amount of carbon in the fuel enhanced CO formation, whereas an increased content of oxygen led to higher CO2 contents. Additionally, the presence of alkali metals in the biomass ash favoured the production of CO. The addition of limestone enhanced the H2 and CO contents via the water gas shift reaction as well as steam and dry reforming reactions, but had no significant effect on tar contents. Overall, this paper presents the feasibility of the dual-fluidized bed gasification process of different biogenic fuels with CO2 as gasification agent.

Fluid-Dynamic Investigations in a Scaled Cold Model for a Dual Fluidized Bed Biomass Steam Gasification Process: Solid Flux Measurements and Optimization of the Cyclone

2007 ◽  
Vol 5 (1) ◽  
Author(s):  
Andreas Kreuzeder ◽  
Christoph Pfeifer ◽  
Hermann Hofbauer
Keyword(s):  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Separation Efficiency ◽  
Fluid Dynamic ◽  
Steam Gasification ◽  
Circulation Rate ◽  
Cold Model ◽  
Gasification Process ◽  
Dual Fluidized Bed ◽  
Bed Material

Gasification of biomass is an attractive technology for combined heat and power (CHP) production. A dual fluidized bed steam gasifier is in commercial operation at the biomass CHP plant in Guessing/Austria since 2002. For circulating fluidized bed applications the bed material consumption is economically crucial. Thus, cyclones for circulating fluidized beds need to be designed properly. Some erosion and caking in the cyclone of the gasifier could be observed with increasing hours of operation. The influences of these effects as well as the influence of the solid circulation rate between the two units on the separation efficiency were investigated by fluid-dynamic investigations using a scaled cold model. The results show that due to erosion and caking elutriation rates are increased, especially for smaller particles. However, the cyclone achieves fractional separation efficiencies of more than 99.9%.

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