System and method for alkylation process analysis

An apparatus for on-line concentration determination of components in a liquid hydrocarbon mixture flowing through an alkylation process, which liquid hydrocarbon mixture includes an unknown concentration of components including hydrocarbons and water, said apparatus comprising:

• a temperature detector;
• a conductivity measurement device;
• a density measurement device;
• a separator that supplies the liquid hydrocarbon mixture in a downstream direction along a fluid flow path to the temperature detector, the conductivity measurement device, and the density measurement device;
• and
• a processor configured to capture data generated by the temperature detector, the conductivity measurement device and the density measurement device, and configured to determine, using the data in combination with a model of responsivities to various concentrations of the components at various temperatures, a temperature compensated concentration of components in the liquid hydrocarbon mixture.

An apparatus for on-line concentration determination of components in a liquid hydrocarbon mixture flowing through an alkylation process, which liquid hydrocarbon mixture includes an unknown concentration of components including hydrocarbons and water, said apparatus comprising:

• (a) a spectrometer configured to analyze the liquid hydrocarbon mixture as the mixture flows continuously past the spectrometer;
• (b) a separator capable of continuously supplying the liquid hydrocarbon mixture in a downstream direction along a fluid flow path to the spectrometer;
• and
• (c) a processor configured to capture data generated by the spectrometer and to use the data to determine a concentration of at least one component in the liquid hydrocarbon mixture.