C3 liquid phase hydrogenation reactor online prediction automatic control method and system

A hydrogenation reactor and liquid-phase hydrogenation technology, applied in general control systems, control/regulation systems, adaptive control, etc., can solve the problems of low efficiency of C3 hydrogenation reaction, and achieve the effect of maximizing benefits

Pending Publication Date: 2021-11-26
CHINA PETROLEUM & CHEM CORP +1
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the present invention provides a kind of carbon three liquid-phase hydrogenation reactor on-line prediction automatic, at least solves the problem of the low benefit of carbon three hydrogenation reaction in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • C3 liquid phase hydrogenation reactor online prediction automatic control method and system
  • C3 liquid phase hydrogenation reactor online prediction automatic control method and system
  • C3 liquid phase hydrogenation reactor online prediction automatic control method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] like figure 1 As shown, a carbon three-phase liquid-phase hydrogenation reactor online predictive automatic control method, including:

[0078] Step S101: Establish a time-varying prediction model based on the characteristics of the carbon three-liquid-phase hydrogenation catalyst;

[0079] Step S102: Carry out classified statistics on the real-time operation data of the hydrogenation reactor to obtain classified statistical data;

[0080] The real-time operation data is based on the user's operation of the hydrogenation reactor. Specifically, it includes the composition and content of materials before and after the C3 liquid phase hydrogenation reactor, the composition and content of the top of the depropanizer tower or the composition and content of the bottom of the deethanizer tower, the composition and content of the circulating C3 material, the online running time of the catalyst, the material Changes in flow rate, reaction temperature, pressure, hydrogen, carbo...

Embodiment 2

[0134] like image 3 As shown, an online prediction automatic control system for a carbon three-phase liquid-phase hydrogenation reactor includes: a time-varying prediction model module, an expert knowledge base module, a gain scheduling module, a soft sensor module, an analysis and evaluation module and a controller module;

[0135] The time-varying prediction model module is used to establish a time-varying prediction model based on the characteristics of the carbon three-liquid phase hydrogenation catalyst, and generate feedback and optimize control parameters based on the time-varying prediction model and analysis and fitting data

[0136] The soft measurement module and the analysis and evaluation module are used to carry out classified statistics to the real-time operation data of the hydrogenation reactor to obtain classified statistical data;

[0137] The expert knowledge base module is used to analyze and fit the classified statistical data to obtain the analysis and ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a C3 liquid phase hydrogenation reactor control method and system. The C3 liquid phase hydrogenation reactor control method comprises the following steps: carrying out classified statistics on operation data of a hydrogenation reactor to obtain classified statistics data; performing analysis fitting on the classified statistical data to obtain analysis fitting data, wherein the analysis fitting is analysis fitting based on an optimization mode of the C3 liquid phase hydrogenation catalyst, an operation rule set and the obtained real-time operation data; establishing a state space model based on the characteristics of the C3 liquid phase hydrogenation catalyst; obtaining control parameters based on the state space model and the analysis fitting data; obtaining gain scheduling data based on the analysis fitting data; and generating a control instruction based on the control parameter and the gain scheduling data. The method and the system provided by the invention can achieve the purpose of obtaining the optimal propylene yield.

Description

technical field [0001] The invention belongs to the field of petrochemical industry, and more specifically relates to an online predictive automatic control method and system for a carbon three-liquid-phase hydrogenation reactor. Background technique [0002] Ethylene technology is the leading technology in petrochemical industry, and the level of ethylene technology is regarded as an important symbol to measure the development level of a country's petrochemical industry. The trienes (ethylene, propylene, butadiene) produced by the ethylene cracking unit are the basic raw materials of the petrochemical industry, and the production of trienes is the main symbol to measure the development level of a country's petrochemical industry. [0003] After steam cracking and separation of liquid hydrocarbon raw materials such as naphtha in the ethylene cracking unit, the C3 fraction contains propylene, propane, and a small amount of propyne and propadiene (MAPD for short), and the cont...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04C07C5/05G16C20/70G16C20/10
CPCG05B13/042C07C5/05G16C20/70G16C20/10C07C11/06
Inventor 卫国宾赵众房艳石瑞红
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap