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Borsodchem Zrt: a 7-MW-low-temperature Waste Heat Recovery Plant
06 Apr 2016

Annex Borsodchem final

BorsodChem Zrt adopted an energy efficiency solution designed and realized in its site in Kazincbarcika, in North-East Hungary, the company’s principal production site. The plant has increased its peak load process steam production capability thanks to Flue Gas Heat Recovery (FGHR) system connected to on one of the two 24 MW Gas Turbines chimney stack. 

BorsodChem Zrt is a company part of the Chinese Wanhua Group, leading the Central and Eastern European market in production of TDI, MDI and PVC resins. The site in Kazincbarcika, North-East Hungary, is the company’s principal production site with a large demand for electrical energy and steam. An important part of the energy demand is covered by the combined heat and power (CHP) plant, composed by two 24 MW gas turbines, each equipped with an 80 t/h Heat Recovery Steam Generator (HRSG). Between 2012 and 2013 a Flue Gas Heat Recovery (FGHR) was installed, connected to one of the two HRSG chimney stacks, capable of recovering up to 7,000 kW. The system uses the residual heat within the 150 °C flue gas to heat the deaerator feed water from 50-60 °C to 70-90 °C. In this way, the deaerators demand of steam is minimised, resulting in a reduction of the natural gas used by the auxiliary steam generators, as well as in a 10 t/h increase of the peak production capability of process steam.

The FGHR is designed to divert the flue gas stream via a centrifugal extraction fan, so that the gas turbine is not affected and the maintenance on the heat recovery system can be performed while the gas turbine is still running.

Key Achievements for Borsodchem: 

  • Reduction of annual energy cost
  • Increase in the peak load production capability of process steam
  • Lower CO₂ footprint and impact on the environment
  • No influence on the gas turbine
  • Flexible maintainability independent of gas turbine operation

E.ON Connecting Energies Italia Srl

Piazza Sigmund Freud 1 - Torre 2
20154 Milano 

Tel. +39 02 89448001
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Website: www.eon-connecting-energies.com

Direct contact:

Piermatteo Cai
Business Developer
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

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