LOGIN TO YOUR ACCOUNT

Username
Password
Remember Me
Or use your Academic/Social account:

CREATE AN ACCOUNT

Or use your Academic/Social account:

Congratulations!

You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.

Important!

Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message

CREATE AN ACCOUNT

Name:
Username:
Password:
Verify Password:
E-mail:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
del Valle Zermeño, Ricardo; Formosa Mitjans, Joan; Aparicio, J.A.; Chimenos Ribera, Josep Maria (2014)
Languages: English
Types: Article
Subjects: DRY-DESULFURIZATION, ABSORPTION, Building materials -- Thermal properties, WASTE-WATER, Magnesium oxide by-products, SO2 REMOVAL, Magnesite calcination, BY-PRODUCTS, Wet flue gas desulfurization, SORBENT, LIMESTONE, OPTIMIZATION, Materials de construcció -- Reciclatge, :Edificació::Materials de construcció::Nous materials de construcció [Àrees temàtiques de la UPC], Low-grade magnesium oxides, FLY-ASH, Magnesia, PILOT-PLANT
The European Commission is encouraging the Cement, Lime and Magnesium Oxide Manufacturing Industries to reutilize collected particulate matter or wastes in the emission control of SO2 with a 100% removal efficiency. Following this directive, three different by-products from the calcination of natural magnesite were selected in order to evaluate their desulfurization capacity. The saturation time, defined as the time for the total neutralization of SO2 was used to determine consumption values at laboratory scale with 100% removal efficiency. The by-product LG-MgO (similar to 68% MgO) presented the lowest consumption value, with 2.9 kg per m(3) of SO2, three times the corresponding to the widely used high grade Ca(OH)(2). The liquid-to-gas (L/G) ratio was used for comparison to the industry and taking this into account, the final pH range before achieving saturation was 5.1-6.3. The residual solids obtained at the end of the process were mainly composed of unreacted magnesium and calcium compounds and reaction products CaSO4 center dot 2H(2)O and MgSO4 center dot 6H(2)O which can be used as fertilizers. Therefore, the reutilization of these by-products in a wet flue gas desulfurization process is a feasible and sustainable choice that allows extending their life-cycle. (C) 2014 Elsevier B.V. All rights reserved. Peer Reviewed
  • No references.
  • No related research data.
  • No similar publications.

Share - Bookmark

Cite this article