×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Bitumen Blowing Tower Emissions

Bitumen Blowing Tower Emissions

Bitumen Blowing Tower Emissions

(OP)
We run a bitumen blowing tower producing emissions of dioxins and PAH's, which we exhaust to an incinerator.
The incinerator is reaching retirement and we are looking at employing worlds best practice to remove the toxic compunds from the blowing tower exhaust. Is there best thing to do to build another incinerator or are there other means by which these harmful chemicals can be removed from the exhaust. To summarise, what is the best way to remove dioxins and PAH's from an exhuast stream.

RE: Bitumen Blowing Tower Emissions


From old notes, the noxious fumes produced in bitumen air-
blowing processes are dealt with by water scrubbing followed by incineration in a fume disposal furnace.

In a few refineries catalysts such as Fe3Cl (less than 1000 ppm) are used to reduce the blowing time.

Many refineries have by now stopped using oxidized bitumen replacing it with vacuum residues (improved vacuum distillation) from some crudes yielding harder penetration bitumens having the desirable mechanical properties of penetration grades. In these refineries blending of penetration bitumens (hard and soft) plays an important role.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources