Conradson Carbon Residue

Conradson Carbon Residue having the abbreviation of “CCR” or generally known as “Concarbon” is a test conducted in the laboratory to measure the amount of carbonaceous residue remaining after the pyrolysis and evaporation of the oil. This test method indicates the coke forming tendencies of the oil.

Different Carbon Residue values can be defined for a oil or fuel depending on the measurement method used which are chiefly or most commonly used methods for estimation of carbon residues, namely :

• Conradson Carbon Residue (CCR)
• Ramsbottom Carbon Residue (RCR)
• Micro Carbon Residue (MCR)

A quantity of the sample is weighed, placed in a crucible and subjected to destructive distillation through a fixed period of severe heating. At the completion of severe heating the residue collected is cooled and weighed to be estimated as a % of weight of the original sample.

ATLAS LAB uses the following test methods for determination of carbon residue :

 METHOD DESCRIPTION ASTM D189 Standard Test Method for Conradson Carbon Residue of Petroleum Products, Conradson carbon residue, lubricants, petroleum products ASTM D4530 Standard Test Method for Determination of Carbon Residue (Micro Method), carbon residue, carbon residue (micro method), diesel fuel, lubricating oil IP 13 Petroleum products - Determination of carbon residue - Conradson method IP 398 : 2015 Petroleum products — Determination of carbon residue — Micro method ISO 10370:2014 Petroleum products — Determination of carbon residue — Micro method ISO 6615:1993 Petroleum products — Determination of carbon residue — Conradson method ANS Z-11.25 Determination of carbon residue DIN 51551-1 Testing of lubricants and liquid fuels - Determination of the carbon residue - Part 1: Conradson method JIS K 2270-1:2009 Crude petroleum and petroleum products - Determination of carbon residue Part 1: Conradson method

ATLAS LAB uses the following equipment for testing Conradson Carbon Residue :