3201 Lecture 1: Report on CARBON RESIDUE TEST OF OILS
Document Summary
The carbon residue of a fuel is its propensity to form carbon deposits under high- temperature conditions in an inert environment. It is generally referred to as micro carbon. It is measured in weight percentage (wt%) or parts per million by weight for a fuel (ppm wt). A fuel with a high carbon residue content is undesirable. The carbon residue of a crude oil product indicates the product"s propensity to form a carbonaceous residue under thermal conditions. The carbonaceous residue is correctly known as the carbon residue, but it is also known as coke or thermal coke. The weight of solid residue left after heating the crude oil to coking temperatures (700-800 c) is used to calculate carbon residue. A carbon residue test is used to evaluate a gas oil"s carbon-forming potential. The research methods are conradson carbon residue (astm d189), ramsbottom carbon residue (astm d524), and micro carbon residue (astm d524) (astm d4530).
