Modification of Type Analysis for Heavy Oil by Downsizing of JPI Standard (JPI-5S-22-83)

摘要

A modified type analysis method (DS method) for heavy oil was conducted using a Liebig condenser as a column, which scale was about 1/4 as prescribed in the JPI standard (JPI-5S-22-83). Two kinds of maltenes (pentane soluble fractions), those from Middle East vacuum residue (ME) and Cold Lake oil sand bitumen atmospheric residue (CL), were separated into saturates, aromatics and resins by JPI and DS methods. The repeatability errors for the recoveries of respective saturates, aromatics and resins were within 2 wt% on each experiments. The recoveries of corresponding fractions between both methods were well agreed to each other, and also the results of elemental analysis. Those results indicate that the DS method is available as an alternative method to the JPI standard.