SU1328342A2 - Method of automatic control of continuous sulfurization reactor - Google Patents

Abstract

The invention relates to a method for automatically controlling an incoming sulfonation reactor, can be used in chemical industry and can improve the quality of the target product by increasing the control accuracy. Pea method (L with ISO X)

Description

A CAP is incorporated which includes a circuit for controlling the ratio of the costs of the sulphating agent and the organic product to the flow reactor by influencing the feed of the latter. The control loop contains sensors (D) 1.2, a regulator (P) 3 of the flow ratio, a valve (K) 6 with a correction according to the ratio of the quantity entered into

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The invention relates to the automatic control of chemical engineering processes, namely the automatic control of a flow reactor for the sulfonation of organic products, for example, higher fatty alcohols, alkyl benzenes (and α-olefins, gaseous sulfuric anhydride mixed with air or an inert gas, improvement of the method according to aut. St. No. 592809.

 The aim of the invention is to improve the quality of the target product by increasing the accuracy of controlling the ratio of the ratios of the starting products.

The drawing shows an automatic control scheme implementing the proposed method.

The signals from flow sensors 1 and 2, installed on the supply lines of the sulphating agent and organic product to the flow reactor, are fed to the ratio controller 3, the output of which is connected to valve 4 located on the organic product supply line. At the same time, the signal from the flow sensor 1 is fed to the flow controller 5, which controls the valve 6 on the sulphating agent supply line. The regulator 3 ratios is supplied with a correction signal from a thermostated conductometric cell 7 via the conductivity sensor 8 and the regulator 9. The value of the task to the regulator of the ratio of the costs of the sulphating agent and organic product is supplied from the sensor 10, to which the correction signal from the sensor 11 concentrator of gaseous sulfuric anhydride, calculated from the flow rate of the initial sulphating agent (D 2) and its concentration (D II), as well as the amount of gaseous sulfuric gas removed from the reactor idrida calculated by the exhaust flow sulfonating agent (D 16) and its density (D 17). 1 il.

Sulfating agent radios. Signal. From the sensor 12, the temperature of the mixture at the outlet of the reactor enters the temperature controller 13, which controls the valve 14 on the coolant supply line.

In addition, simultaneously signals from flow sensors 1 and concentration

11. installed on the supply line of the sulphating agent into the flow reactor, are fed to the multiplication unit 15, and the signals from the flow sensors 16 and concentration 17 installed

on the output line of the spent sulphating agent from the flow reactor, are fed to multiplication unit 18, and the outputs of multiplication units 15 and 18 are supplied to ratio controller 19. The regulator 3 is supplied with a correction signal from the output of the regulator 19 ratio when controlling the flow rate of the organic product.

The scheme works as follows; Block 15 multiplies the signals from the outputs of sensors 1 and 11 and calculates the amount of gaseous sulfuric anhydride:

F, C ,,.

where F, is the consumption of the sulphating agent; C is the concentration of gaseous sulfuric anhydride in the sulphurizing agent,

entering the flow reactor with the input stream of the sulfating agent. Block 18, by multiplying the signals from the output of sensors 16 and 17, calculates the amount of gaseous sulfuric anhydride: FZ-C.

where F is the consumption of the spent agent sulphurizing; C is the concentration of gaseous sulfuric anhydride in the spent sulfonating agent,

coming from the flow reactor with the output stream of the spent sulfonating agent.

The output signal from the multiplication unit 15 is fed to the first input of the ratio controller 19, the second input of which receives a signal from the output of the multiplication unit 18. The regulation of the ratio of these signals, ensuring stabilization of the sulfonation mode, is carried out by changing the flow rate of the organic product entering the protraction reactor, for which the correction signal from the output of the ratio controller 19 is sent as a reference to the controller 3, the ratio of the sulfating agent and organic product costs into the flow reactor.

This method of automatic control of a flow sulphurization reactor improves the accuracy

Or N.Gunko 3450/27

Compiled by T.Golenshnna Tehred M.Hodanich

Cor Pod

Circulation 371 VNISHI USSR State KomiFet

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

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adjusting and improving the quality of the target product.

Claims (1)

Invention Formula A method for automatic control of a flow sulphurization reactor according to the auth. No. 592809, characterized in that, in order to improve the quality of the target product by increasing the accuracy of controlling the cost ratio of the starting products, the consumption of the spent sulphating agent and its concentration are additionally measured, the amount of gaseous sulfuric anhydride removed from the reactor is determined by these parameters the amount of sulfuric anhydride gas introduced into the reactor is determined by the initial sulphating agent and its concentration; the ratio of the amounts of input and output sulfur is calculated anhydride and adjust the value of the task of the ratio of the costs of the sulfonating agent and the organic product in proportion to the calculated ratio. Proofreader V.Girn to Subscription