Policy     Economics     Technologies

Energy savings in the production chains of Tronox

For Tronox, a titanium dioxide producer at the Port of Rotterdam, CE Delft has conducted a study on the scope for improved energy efficiency and CO2 emission cuts. Because the company has already implemented numerous on-site efficiency improvements, the emphasis was now on higher-quality uses of waste streams. The scope for using biomass as a raw material was also investigated.

The study was carried out in the framework of the ‘MEE agreement’, a voluntary agreement on energy efficiency in the energy-intensive industry, with financial support from NL Agency. 

Five options were elaborated in the project: 

  • supply of waste heat to the Rotterdam heat grid;
  • supply of CO2 as a resource for greenhouse horticulture;
  • marketing of HCl from a wastewater stream;
  • use of a slurry waste stream as a raw material for road construction;
  • use of bio-coke as a substitute for petroleum coke.

The options were analysed in terms of technological feasibility, costs/benefits and impact on CO2 emissions. Overall, the options lead to a surprisingly large reduction in the company’s CO2 footprint: around 25%. Tronox will be using the results to elaborate and plan follow-up action. Prompted by this study, VNCI and NL Agency have also included the issue of bio-coke in the so-called Route Map for the Chemical Industry and commissioned a study to examine the potential for using bio-coke throughout the Dutch chemical sector. 

Authors CE

Harry Croezen
Marit van Lieshout
Maarten Afman

Delft, September 2012

the report


Tweets by @cedelft

Waarom kiezen voor de planeconomie? Column Frans Rooijers over Klimaat- en Energieakkoord #energieakkoord op Energi… https://t.co/S4PPQTlB8z
13-12-2017 09:55

Article - Evaluating the environmental impact of debit card payments https://t.co/IfnNwC3p0b
07-12-2017 16:23

Rapport Net voor de Toekomst - scenario's voor investeringskeuzes van netbeheerders in infrastructuren https://t.co/W4mUsLCuZ0
07-12-2017 16:04

Gezamenlijke visie om Omgevingswet, regionale energiestrategie en warmtetransitieplan lokaal gelijk te gebruiken… https://t.co/YwHhzl338d
06-12-2017 16:30

Position paper @CEDelft t.b.v. hoorzitting/rondetafelgesprek Kunststofketen en zwerfafval Tweede Kamer d.d. 30 nove… https://t.co/fLEooSyZL6
30-11-2017 12:32