Novel method for on-line measurement in the simulated moving bed apparatus, and the application to the control and regulation of the device

摘要

The present invention describes a method for measuring the concentrations of the species present in a point of a separation unit operates in the simulated moving bed (lms), or a separation unit by distillation, using a probe to immersion placed at a point of the unit or on one of the incoming or outgoing streams of said unit, and a thermocouple placed in the vicinity of the probe to the immersion, in which it uses a raman spectrum obtained from a laser source, operating at a wavelength of 785 nm. The application of the method to the control and regulation of a separation unit of xylenes into the lms algorithm or a separation unit by distillation.