Publication detail

Conceptual Design Method for Energy Retrofit of Waste Gas-to-Energy Units

FREISLEBEN, V. JEGLA, Z.

English title

Conceptual Design Method for Energy Retrofit of Waste Gas-to-Energy Units

Type

journal article in Web of Science

Language

en

Original abstract

Many industrial waste gasses, especially from chemical and petrochemical processes, contain combustible substances enabling their utilization as a promising energy source. Thermal oxidation represents a suitable and proven technology, which is, however, very energy intensive in terms of external fuel demand dependent on exhaust heat recovery efficiency. This paper presents a systematic method developed for the Energy Retrofit of industrial units for thermal oxidation of waste gasses (waste gas-to-energy units) in order to improve the units´ waste heat recovery and thus to reduce the external energy demand. Thisresults in the reduction of operational costs and emissions and improves waste gas energy utilization.The method procedure is further applied to Energy Retrofit of a specific waste gas to energy unit, where the fuel saving of over 30% was achieved by the proposed conceptual modifications with a payback period of only 5.5 months. Finally, the developed method accuracy was successfully verified by the comparison with results of non-linear simulation.

English abstract

Many industrial waste gasses, especially from chemical and petrochemical processes, contain combustible substances enabling their utilization as a promising energy source. Thermal oxidation represents a suitable and proven technology, which is, however, very energy intensive in terms of external fuel demand dependent on exhaust heat recovery efficiency. This paper presents a systematic method developed for the Energy Retrofit of industrial units for thermal oxidation of waste gasses (waste gas-to-energy units) in order to improve the units´ waste heat recovery and thus to reduce the external energy demand. Thisresults in the reduction of operational costs and emissions and improves waste gas energy utilization.The method procedure is further applied to Energy Retrofit of a specific waste gas to energy unit, where the fuel saving of over 30% was achieved by the proposed conceptual modifications with a payback period of only 5.5 months. Finally, the developed method accuracy was successfully verified by the comparison with results of non-linear simulation.

Keywords in English

Thermal oxidation; Shifting Flue Gas Line method; waste gas-to-energy unit; Energy Retrofit; fuel saving; VOC; CO

Released

01.06.2022

Publisher

SDEWES Centre

ISSN

1848-9257

Volume

10

Number

2

Pages from–to

1–19

Pages count

19

BIBTEX


@article{BUT175273,
  author="Vít {Freisleben} and Zdeněk {Jegla},
  title="Conceptual Design Method for Energy Retrofit of Waste Gas-to-Energy Units",
  year="2022",
  volume="10",
  number="2",
  month="June",
  pages="1--19",
  publisher="SDEWES Centre",
  issn="1848-9257"
}