Process for analysis of asphaltene content in hydrocarbon mixtur

Details Process for analysis of asphaltene content in hydrocarbon mixtur Process for analysis of asphaltene content in hydrocarbon mixtur

1998-05-22

2000-07-11

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

25033909, 2503415, 436 60, 436139, G01N 2135, G01N 3326

Patent

active

06087662&

ABSTRACT:
Asphaltene concentration of a hydrocarbon feed is measured by IR spectroscopy using mid-range IR frequencies between 3800 cm.sup.-1 and 650 cm.sup.-1 (corresponding to wavelengths between 2630 nanometers (nm) and 15,380 nm) together with mathematical techniques and statistical techniques in which measurements of absorption are made, and combines these with multiple regression analysis, or other statistical technique and modeling to determine asphaltene concentration. The output signal can be used to control refinery and chemical processes, e.g., atmospheric crude column, vacuum distillation column, solvent deasphalting and visbreaking.

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patent: 5266800 (1993-11-01), Mullins
patent: 5452232 (1995-09-01), Espinosa et al.
patent: 5475612 (1995-12-01), Espinosa et al.
patent: 5672873 (1997-09-01), Yamazoe
patent: 5817517 (1998-10-01), Perry et al.

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