Integrace jednotky pro energetické využití odpadů do stávajícího energetického systému

Waste-to-energy plant integrated into existing energy producing system

journal article - other

en

The EU directive on waste management from 2008 brings significant changes in waste treatment in many member states. For example, the Czech Republic agreed that by 2020 landfilling of biodegradable waste (BDW) will be decreased by 65% compared to 1995. Municipal solid waste (MSW) contains about 40% of BDW and therefore significantly contributes to BDW production. Due to its advantages and the lowest impact on the environment, MSW incineration is one of the preferred waste treatment options. To meet the EU target the Czech Republic needs to increase the capacity of incineration plants (thermal treatment) by 1500 kt/y if current production is considered. In addition to waste disposal there is a potential of energy production and contribution to primary energy savings. This paper is focused on Integration of WTE plant into an existing heating plant with installed capacity of nearly 500 MW. The system is investigated from the energy and economic points of view. An advanced approach applying optimization procedure (in GAMS software) is used to deal with problem of WTE integration. The objective is to support decision-making process of a new plant by finding fundamental design parameters of the integrated WTE plant (annual capacity of the WTE plant – amount of waste processed, distance of waste collection, gate fee, power-to heat ratio etc.) and other parameters (identification of heat flows through the plant) essential for economic analysis.

Nová směrnice EU o odpadech upravuje nakládání s odpady a přináší významné změny pro řadu členských zemí. Pro ČR to mimo jiné znamená výrazný odklon od skládkování. Energetické využití odpadů je efektivní způsob jak tohoto dosáhnout. Ovšem kapacita jednotek pro energetické využití odpadů (EVO) v ČR je při současné produkci odpadů nedostačující. Tato práce se zabývá integrací jednotky EVO do stávajícího energetického zdroje s výkonem 500 MW. Celý systém je rozebrán jak s energetického tak z ekonomického hlediska. Na problém integrace je aplikována optimalizační procedura hledající vhodné parametry celého systému (zpracovatelská kapacita jednotky EVO, určení energetických toků v systému, atd.).

The EU directive on waste management from 2008 brings significant changes in waste treatment in many member states. For example, the Czech Republic agreed that by 2020 landfilling of biodegradable waste (BDW) will be decreased by 65% compared to 1995. Municipal solid waste (MSW) contains about 40% of BDW and therefore significantly contributes to BDW production. Due to its advantages and the lowest impact on the environment, MSW incineration is one of the preferred waste treatment options. To meet the EU target the Czech Republic needs to increase the capacity of incineration plants (thermal treatment) by 1500 kt/y if current production is considered. In addition to waste disposal there is a potential of energy production and contribution to primary energy savings. This paper is focused on Integration of WTE plant into an existing heating plant with installed capacity of nearly 500 MW. The system is investigated from the energy and economic points of view. An advanced approach applying optimization procedure (in GAMS software) is used to deal with problem of WTE integration. The objective is to support decision-making process of a new plant by finding fundamental design parameters of the integrated WTE plant (annual capacity of the WTE plant – amount of waste processed, distance of waste collection, gate fee, power-to heat ratio etc.) and other parameters (identification of heat flows through the plant) essential for economic analysis.

Energetické využití odpadů, EVO, integrace EVO, optimalizace

Waste-to-energy, WTE, WTE integration, optimization

2011

11.05.2011

A.I.D.I.C Servizi S.r.l.

Milano, Italy

1974-9791

Chemical Engineering Transactions

25

1

501–506

6