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Copper melting process control method and system

A process control and control system technology, applied in the direction of electrical program control, comprehensive factory control, comprehensive factory control, etc., can solve the problems of inability to stop or adjust the reaction process, poor controllability of the reaction process, pollution of the environment, etc., to reduce the reaction Total time consumption, achieve controllability, and reduce energy consumption

Active Publication Date: 2017-12-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the controllability of the reaction process is relatively poor, and the reaction process cannot be stopped or adjusted as the process progresses.
During the reaction process, the temperature and pressure are often overheated by a large margin, and a large amount of NO is produced at the same time. 2 , pollute the environment, increase consumption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] Embodiment: the control of copper melting process in chemical agent preparation process, its control process is as follows:

[0030] The first step: the purpose of preparing copper nitrate solution is to react the solid copper plate with nitric acid to prepare a copper nitrate solution with a concentration of 250g / l. Copper nitrate melting operation, the raw materials are excess 99.9% electrolytic copper and 60% nitric acid solution, and the reaction is carried out in a copper nitrate dissolving barrel.

[0031] The second step: before starting the DCS preparation process of copper nitrate, it is necessary to manually add copper plates to the copper nitrate dissolution barrel. The amount of copper plate added is 3.2 tons and check whether the following parameters meet the requirements.

[0032] The third step: Start the button to start the copper nitrate solution preparation process. Set up 4 temperature control points, namely T1, T2, T3, T4. Where T1<T3<T2<T4. Set ...

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PUM

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Abstract

The invention belongs to a method and system for controlling a continuous production chemical reactor, and particularly relates to a control method and system of a copper melting process in catalyst production. The speed of temperature variation in a chemical reaction process is utilized to judge the condition of the reaction process and an addition amount of reaction acid is controlled according to the speed of temperature variation, and an original reaction system of plenty of metal and plenty of acid is changed into a reaction system of plenty of metal and a small amount of acid. In terms of object characteristics, after an original large capacity lag is changed into a small capacity lag, thereby changing system characteristics. Then macroscopic reaction heat representing reaction depth and production index data related with the reaction depth are obtained in real time according to other data of pressure and liquid level, the condition of the reaction process is judged and the macroscopic reaction heat and production indexes are used as main variables to be controlled, thereby realizing multi-variable control or optimized control of the reaction depth, production indexes and other variables.

Description

technical field [0001] The invention belongs to a control method and system for a continuous production chemical reactor, in particular to a control method and system for a copper melting process in catalyst production. Background technique [0002] In the copper melting reaction process of catalyst production, there are usually multiple control requirements, such as reaction temperature, reaction pressure, and reaction depth. In order to meet production requirements, maintain and corresponding production indicators. Multiple parameters need to be controlled. For example, the temperature, concentration and flow rate of various streams entering the reactor, etc. Many of these variables cannot be measured, for example, acid consumption, residual acid ions, and reaction depth cannot be measured in real time, and there is no certain method for how to measure the reaction depth after these variables change. Like the depth of reaction, many production indicators cannot be measu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 陈怡沈光明
Owner CHINA PETROLEUM & CHEM CORP