FIELD: chemistry.
SUBSTANCE: invention relates to a method of measuring a set of technological parametres of a chemical process taking place in a chemical reactor. The method of determining at least one technological parametre of a chemical process taking place in a reactor 2, involves passing a sample of the process medium of the chemical process into a lateral circuit (20, 22, 24, 26, 34, 40, 42, 36) and isolation of the said sample from the remaining process medium in the said reactor; circulation of the said sample in the said lateral circuit and its thermal processing therein to the required temperature; taking measurements of at least one technological parametre of the said sample, chosen from viscosity, pH, conductivity, turbidity, and/or taking spectrometre measurements with provision for spectrometric data at the required temperature; controlling the chemical process based on the determined at least one technological parametre. The method is realised in a system which has an output 18 and an input 28; lateral circuit (20, 22, 24, 26, 34, 40, 42, 36), connected to the reactor 2 through output 18 and input 28, which enable passage of the sample of process medium from the said reactor 2 to the said lateral circuit and back to the said reactor; a device 30 for circulating the said sample; valves V1, V2, V4, V5 for isolating the said sample in the said lateral circuit from the remaining process medium in the said reactor 2; a device for thermal processing 46, 50, 52, V7 the said sample in the said lateral circuit to the required temperature; and a device for measuring 38 at least one technological parametre, chosen from viscosity, pH, conductivity, turbidity; and/or apparatus for measuring spectrometric data at the required temperature in the said lateral circuit and apparatus for controlling the chemical process based on the measured technological parametres.
EFFECT: invention allows for taking a large number of measurements of different technological parametres, accurate measurement at temperatures different from temperature of the reactor, fast switching between measurements taken in inline and online modes, as well as prevention of clogging of equipment of the system.
18 cl, 4 dwg
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Authors
Dates
2009-11-20—Published
2005-09-15—Filed