Cart

IP 14: Petroleum products - Determination of carbon residue - Ramsbottom method

refining-and-midstream
analytical-testing; ip-test-methods
  • Published: January 1994
  • Reapproved: 2004
  • REF/ISBN: IP014-2935231

Overview:

Scope

This International Standard specifies a method for determining the amount of carbon residue, in the range of 0,01% (m/m) to 30,0 % (m/m), left after
evaporation and pyrolysis of an oil, and is intended to provide some indication of relative coke-forming tendency. The method is generally applicable to relatively non-volatile petroleum products which partially decompose on distillation at atmospheric pressure.
NOTES
1 The term "carbon residue" is used throughout this International Standard to designate the carbonaceous residue formed during evaporation and pyrolysis of a petroleum product. The residue is not entirely composed of carbon, but is a coke which can be further changed by pyrolysis. The term "carbon residue" is retained in this method only in deference to its widespread use.
2 The carbon residue of distillate and residual fuel oils gives an approximate ranking of such fuels in terms of their propensity to form deposits in specific applications.
3 The presence of alkyl nitrates in distillate fuels, or ash-forming additives in either distillate or residual fuels, will give carbon residue results that are higher than the corresponding values of the fuel without additives. These values may not correlate with the propensity of a fuel to form deposits.
4 The carbon residue of base lubricating oils may give an indication of the propensity of the oil to lay down deposits in combustion chambers, and/or of the relative chemical constitution of oils of similar viscosity. Most finished lubricating oils contain ash-forming additives, and thus the carbon residue of finished lubricants cannot be used in this manner
5 The carbon residue of a gas oil is a useful guide in the manufacture of gas

Log in to your EI account to purchase this publication.

If you are not a Member, why not join today and receive all of the benefits of EI Membership?
EI Technical Partner employees have free access to all T+I resources. Other levels of EI membership provide a 25% discount on most EI publications.

Our publications website is designed exclusively for EI members and customers to easily access and download PDF versions of our publications. For hard copies, please contact the EI Publishing Team at [email protected]. To access previously downloaded copies go to My publications.

Membership icon Your membership
  • User type icon User Type
  • PDF icon PDF Document
  • Hard copy icon Hard copy
  • Discount icon 25% discount on most EI publications
  • Free icon Free access to other EI publications
Membership icon Your membership
  • Technical partners
  • Free
  • Contact us
Membership icon Your membership
  • Technical company members
  • Free
  • Contact us
  • Limited access
Membership icon Your membership
  • EI member
  • £52.00
  • Contact us
Membership icon Your membership
  • Non-member
  • £104.00
  • Contact us
Membership icon

Your membership

Technical partners

  • PDF icon PDF Document
    Free
  • Hard copy icon Hard copy
    Contact us
  • Free icon Free access to other EI publications
Membership icon

Your membership

Technical company members

  • PDF icon PDF Document
    Free
  • Hard copy icon Hard copy
    Contact us
  • Free icon Limited access to other EI publications
Membership icon

Your membership

EI member

  • PDF icon PDF Document
    £52.00
  • Hard copy icon Hard copy
    Contact us
  • Free icon Limited access to other EI publications
Membership icon

Your membership

Non-member

  • PDF icon PDF Document
    £104.00
  • Hard copy icon Hard copy
    Contact us
  • Free icon Limited access to other EI publications

Related EI content