V\u00fdzkum je specificky zam\u011b\u0159en na oxy-fuel spalov\u00e1n\u00ed r\u016fzn\u00fdch druh\u016f biopaliv ve fluidn\u00ed vrstv\u011b, kter\u00e9 se z pohledu nov\u00fdch za\u0159\u00edzen\u00ed jev\u00ed jako nejperspektivn\u011bj\u0161\u00ed, a na cel\u00fd technologick\u00fd \u0159et\u011bzec s n\u00edm spojen\u00fd, v\u010detn\u011b v\u00fdroby kysl\u00edku. Dal\u0161\u00edm kl\u00ed\u010dov\u00fdm v\u00fdzkumn\u00fdm sm\u011brem je oxy-zply\u0148ov\u00e1n\u00ed biomasy s\u00a0minimalizac\u00ed produkce CO2<\/sub> a t\u0159et\u00edm kl\u00ed\u010dov\u00fdm sm\u011brem jsou technologie vyu\u017eit\u00ed zachycen\u00e9ho CO2<\/sub> z\u00a0oxy-fuel spalov\u00e1n\u00ed pro v\u00fdrobu kapaln\u00fdch biopaliv.<\/span><\/p>\n The research will be specifically focused on oxy-fuel combustion of various sorts of biomass in a fluidized bed, which turns out to be one of the most promising technology, and on its complete technological chain, including production of oxygen. Second major research task is oxy-gasification of biomass and the third key task is utilization of the captured CO2<\/sub> to produce liquid fuels.<\/p>\n In the project there will be carried out associated research tasks \u2013 preparation of biomass for the oxy-fuel combustion and gasification processes, separation of condensable gases from final CO2<\/sub>, process modelling and process characterization with datamining. Further activities are enhancement of international cooperation, development of research team, mobility of researchers and PhD students, know-how transfer and modernization of research infrastructure at all project partners in order to significantly increase the research quality.<\/p>\n The research part of the project is divided into following work packages:<\/strong><\/p>\n This research in complex focused on technology of biomass oxy-fuel combustion in a fluidized bed. It is a system, where a biomass is combusted by pure oxygen instead of\u00a0conventional air. A flue gas recirculation is used in order to attain the amount of heat carrier in the fluidized bed. The output is a flue gas with high concentration of carbon dioxide (around 90 % in dry flue gas), which however contains a number of others components that need to be removed prior to CO2<\/sub> storage or utilization. Those are in particular oxides of\u00a0nitrogen, sulphur, water vapour and particulate matter. To this is linked the necessity of\u00a0control the combustion process of biomass in an oxy-FB itself, since there arise various\u00a0problems given by specific fuel properties of biomass. For example, it is a case of high fuel-N content, or low amount of ash that implies necessity of using external bed materials, or low ash fusion temperatures of biomass. In this research program there will be solved a number of particular research tasks that have been already investigated in the case of fossil fuels in conventional air combustion, but they are entirely not known for biomass in oxy-fuel combustion mode. The particular tasks will be investigated in the way to cover whole\u00a0technological chain from biofuel entry into the system of oxy-fuel combustion up to outlet of\u00a0pure CO2<\/sub> free of unwanted components.<\/p>\n Work Package 2 (hereinafter referred to as WP2) focuses on progressive and modern methods of gasification and pyrolysis which produce minimum harmful substances, including\u00a0carbon dioxide. Various gasification media, including recirculated flue-gas, will be used to decrease final amounts of carbon dioxide. As part of the testing, we will closely cooperate with our partners to prepare and modify the fuels. WP2 activities are linked to the WP1. The aim of the cooperation in the project is to cover the complex field of thermal processes of biomass conversion for CO2<\/sub> capture.<\/p>\n The aim of WP3 is to design and to test such a laboratory technology, machinery and\u00a0equipment, which (1) enables cleaning and upgrading CO2<\/sub> and syngas to the quality required\u00a0for further processing, (2) ensures efficient, energy-efficient and economically viable\u00a0biochemical or thermochemical transformation of CO2<\/sub> and syngas to the desired bioproducts,\u00a0and finally (3) assures minimal formation of waste in solid, liquid, and especially in gaseous\u00a0form, i.e. in the concept of zero-emission technology.<\/p>\n The research program shall be focused on the issue of preparing biomass for further energy use. The aim of the research is to prepare torrefacted biomass meeting quality requirements set for fuel and shall be consequently used for energy purposes, mainly for the oxy-fuel technology. Requirements for quality indicators of the procedural raw material shall be defined (for instance: the content of alkali, chlorine, majority elements \u2013 cellulose, lignin, hemi-cellulose, ash matter) and requirements for bio-fuel for the incineration in various types of energy equipment and oxy-fuel technology. Therefore, the influence of temperature and speed of heating shall be monitored during torrefaction on the share of siccative inflammables and fixed carbon in torrefacted carbon significantly affecting the mechanical characteristics of bio-fuel (the possibilities of compaction, pressing, hydrophobic\/hydrophilic characteristics, possibilities of pressing and mechanical abrasion etc.) from the aspect of their further use (transport, storing).<\/p>\n Utilization of CO2<\/sub> from combustion processes for further technological purposes, as well as the variant of CO2<\/sub> storage, require to achieving a sufficient purity of the product. Moisture,\u00a0low volatile vapours and fine aerosol particles, which may contain high concentrations of\u00a0heavy metals, can be separated from the flue gas by the cleaning and condensation processes. Condensation processes are the contents of WP5. These processes can be implemented by the “traditional” way using condensing heat exchangers (WP5.1), it is possible to use an\u00a0alternative approach using hollow polymeric fibres (WP5.4), but it is also\u00a0necessary to consider (research) the new alternative procedures (WP 5.2). The evaluation of\u00a0the various condensation cleaning approaches from the point of view of their integration in CCS\/U technologies will be also a part of the programme (WP 5.3).<\/p>\n This WP complements the experimental activities within the project by research and\u00a0development of a mathematical model of fluidized bed combustion of biomass, its numerical implementation and subsequent validation in coordination with the experiments. The goal of the program is to develop a simulation software which will provide information about the behaviour of the processes during combustion (and gasification) in fluidized bed, while\u00a0requiring significantly smaller amount of time and resources compared to the experiments.\u00a0The software and the simulation results may contribute to the design or control optimization\u00a0of these processes.<\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" Research in the field of CO2 capture from combustion processes (CCS-carbon capture and storage) using biomass \u2013 so-called Bio-CCS, and also with utilization of the captured CO2 \u2013 Bio-CCU. V\u00fdzkum je specificky zam\u011b\u0159en na oxy-fuel spalov\u00e1n\u00ed r\u016fzn\u00fdch druh\u016f biopaliv ve fluidn\u00ed vrstv\u011b, kter\u00e9 se z pohledu nov\u00fdch za\u0159\u00edzen\u00ed jev\u00ed jako nejperspektivn\u011bj\u0161\u00ed, a na cel\u00fd technologick\u00fd…<\/p>\n","protected":false},"author":31,"featured_media":0,"parent":9998,"menu_order":214,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-10003","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/energetika.cvut.cz\/en\/wp-json\/wp\/v2\/pages\/10003","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/energetika.cvut.cz\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/energetika.cvut.cz\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/energetika.cvut.cz\/en\/wp-json\/wp\/v2\/users\/31"}],"replies":[{"embeddable":true,"href":"https:\/\/energetika.cvut.cz\/en\/wp-json\/wp\/v2\/comments?post=10003"}],"version-history":[{"count":6,"href":"https:\/\/energetika.cvut.cz\/en\/wp-json\/wp\/v2\/pages\/10003\/revisions"}],"predecessor-version":[{"id":11773,"href":"https:\/\/energetika.cvut.cz\/en\/wp-json\/wp\/v2\/pages\/10003\/revisions\/11773"}],"up":[{"embeddable":true,"href":"https:\/\/energetika.cvut.cz\/en\/wp-json\/wp\/v2\/pages\/9998"}],"wp:attachment":[{"href":"https:\/\/energetika.cvut.cz\/en\/wp-json\/wp\/v2\/media?parent=10003"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nWP1: Oxy-fuel combustion of biomass in fluidized bed
![\"\"](\"https:\/\/energetika.cvut.cz\/wp-content\/uploads\/mechanical_engeneering-e1552995100624.jpg\")
<\/h3>\nLead institution: CTU-FME\/Energy Engineering<\/span><\/h4>\n
\n<\/h3>\n
WP2: Progressive methods of biomass gasification and pyrolysis with suppressed carbon dioxide formation
![\"\"](\"https:\/\/energetika.cvut.cz\/wp-content\/uploads\/logo_vut_fsi_en.png\"){kind=logo}
<\/a><\/h3>\nLead institution: BUT-FME<\/span><\/h4>\n
\nWP3: Usage of CO2<\/sub> and syngas as a feedstock for 3rd<\/sup> and 4th<\/sup> generation biofuels production
<\/h3>\nLead institution: CTU-FME\/Process Engineering<\/span><\/h4>\n
\n<\/h3>\n
WP4: Preparation of biomass for the oxy-fuel combustion and gasification technologies
![\"\"](\"https:\/\/energetika.cvut.cz\/wp-content\/uploads\/sta\u017een\u00fd-soubor.png\")
<\/a><\/h3>\nLead institution: V\u0160B-TUO ENET<\/span><\/h4>\n
\n<\/h3>\n
WP5: Effective cleaning of CO2<\/sub> by condensation processes
![\"\"](\"https:\/\/energetika.cvut.cz\/wp-content\/uploads\/CAS_basic_logo_ENG_cmyk.jpg\"){kind=logo}
<\/a><\/h3>\nLead institution: IT CAS<\/span><\/h4>\n
\n<\/h3>\n
WP6: Mathematical modelling and numerical simulation of oxy-fuel combustion processes in the fluidized bed
![\"\"](\"https:\/\/energetika.cvut.cz\/wp-content\/uploads\/loga_nuclear_sciences_and_physical_engineering.jpg\"){kind=spacer}
<\/a><\/h3>\nLead institution: CTU-FNSPE<\/span><\/h4>\n