Tighten Control of Distillation Processes with the New MXT® - 1HT Sim Dist Column

High temperature crude oil simulated distillation using ASTM methods D6352 and ASTM D7500 presents many challenges to refineries and contract laboratories for the determination of petroleum distillates in the boiling range of 174?C to 720?C. Both the column construction and the polydimethylsiloxane polymer must be robust enough to withstand the high method temperatures without significant degradation. In addition, columns must yield a C50/C52 resolution value between 2 and 4, exhibit acceptable peak symmetry, and reliably produce accurate boiling point data. Accurate determination of the boiling range distribution of medium and heavy fractions using GC simulated distillation provides critical information regarding the composition of crude oil and other products related to refinery processes. While fused silica columns can be used, they are not the best option anymore for high temperature simulated distillation applications. Metal MXT?-1HT Sim Dist columns are a much better alternative. These new columns are more stable at 430?C than fused silica columns and easily meet all method criteria, even under accelerated conditions.