ERBA: Production of producer gas by reforming of biomass with selective CO2 separation for feeding into the gas grid of an integrated metallurgical plant

01.04.2011 - 31.03.2015

Forschungsförderungsprojekt

Efficient utilization of biomass as a primary energy source reduces greenhouse gas emissions and reduces the need for long-distance transport of energy, thus increasing the security of energy sup-plies. The main challenge is to develop new fields of application apart from simple heat generation. In this area, the dual fluidized bed steam gasification technology developed at Vienna University of Technology and successfully demonstrated in Güssing and Oberwart at a scale of 8 resp. 10 MWth represents a key technology for both efficient combined heat and power production as well as for coupled production of synthetic biofuels (2nd generation biofuels, polygeneration approach). For integrated metallurgical plants several opportunities are on hand: • Application as substitute for natural gas • Application as alternative reducing agent for the blas furnace process • Improvement of of the CO2 balance of single processes of an integrated metallurgical plant • Application of thermo-chemical conversion of woody biomass for the blast furnace process can be assumed due to new recent findings (G-volution system, lime stone process) Main objective of the project is the proof of concept for the technology with the available materials in combination the innovative fluidised bed system, which is aimed for operation with less attrition resistant bed materials and for large scale application. The applied methodology follows the common approach for development of fluidised bed systems: • A cold flow model is used to develop adaptations to the existing technology such as two-stage separation system for low bed material attrition rates. • A 100.200 kW pilot plant will be used fort he proof of concept. The gained results will be implemented into a techno-economic assessment. • Adaptation of the pilot plant for the experiments with lime stone. • The performance of the process will be determined by calculation of complete mass- and energy balances for stable operation points. • Validated process models are used as basis for design and evaluation of a large scale plant. Summarizing, the project aims a process capable of being integrated into a metallurgical plant. Therefore, the existing dual fluidised bed steam gasification process will be adapted to lime stone as bed material. Process parameters will be determined to produce a product gas with sufficient reduction potential and a lower heating value of 15 MJ/Nm3. Stable operation with lime stones available at the metallurgical plant is aimed. These materials will be investigated with regard to suitability as bed material for a fluidised bed system and to CO2 transportation capacity. As final result an economic concept for a large scale plant with 100 MWth will be provided.

Personen

Institut

E166 - Institute of Chemical, Environmental and Bioscience Engineering

Grant funds

Kommunalkredit Austria AG (National) Kommunalkredit Public Consulting (KPC)

Forschungsschwerpunkte

Efficient Utilisation of Material Resources: 100%

Schlagwörter

Deutsch	Englisch
Biomasse	biomass
Wirbelschicht	fluidization
sorption enhanced reforming	sorption enhanced reforming
Integriertes Hüttenwerk	integrated metallurgical plant

Publikationen

Publikationsliste