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Molecular-level real time optimization (RTO) method for oil refining and petrochemical device

A molecular level, petrochemical device technology, applied in the direction of comprehensive factory control, instrumentation, comprehensive factory control, etc., can solve problems such as difficult global optimization and real-time optimization, poor optimization effect, accuracy impact, etc., to achieve rapid optimization effect, Effective optimization scheme, complete effect of prediction and optimization capabilities

Pending Publication Date: 2017-02-22
SYSPETRO TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method based on empirical models or lumped models only has certain accuracy within the range of conditions covered by empirical data; when raw materials change, or reaction conditions exceed the coverage of historical data, its accuracy will be greatly affected. Influence, leading to poor optimization effect, even lead to loss, so it is difficult to be used for global optimization and real-time optimization

Method used

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  • Molecular-level real time optimization (RTO) method for oil refining and petrochemical device
  • Molecular-level real time optimization (RTO) method for oil refining and petrochemical device
  • Molecular-level real time optimization (RTO) method for oil refining and petrochemical device

Examples

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Embodiment 1

[0048] [Embodiment 1] The embodiment of the present invention applied to a catalytic reformer.

[0049] 1. Taking a catalytic reforming unit as the implementation object, using an online chromatographic analyzer as an online detection instrument to detect the macroscopic properties of raw materials and products in real time, including the content of saturated hydrocarbons, unsaturated hydrocarbons, toluene, xylene and other substances; image 3 The structural configuration of the online chromatographic analyzer used in this example is shown.

[0050] 2. According to the macroscopic properties of the raw material obtained by the online chromatographic analyzer in step 1, compare the molecular database of the reformed raw material to obtain the detailed molecular composition of the raw material. Among the molecular components of reforming raw materials, there are a total of 243 molecular components such as n-alkanes, isoparaffins, five-membered cycloalkanes, six-membered cycloal...

Embodiment 2

[0062] [Example 2] The present invention is applied to the embodiment on the atmospheric and vacuum distillation unit.

[0063] 1. Take a set of combined atmospheric distillation and vacuum distillation as the implementation object, and use an online near-infrared spectrum analyzer or nuclear magnetic resonance analyzer as an online detection instrument to detect the properties of raw materials and products in real time. Detection objects include crude oil, constant top oil, constant first line, constant second line, constant third line, minus first line, minus second line, minus third line, minus four line and other streams. The detection properties include density, distillation range, dry point, viscosity, carbon residue, sulfur content, etc.

[0064] 2. According to the crude oil properties obtained by the online near-infrared spectrometer or nuclear magnetic resonance analyzer in step 1, compare the crude oil molecular database to obtain the detailed molecular composition ...

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Abstract

The invention discloses a molecular-level RTO method for an oil refining and petrochemical device. The method mainly comprises the steps that molecular composition and physicochemical properties of a product are predicted according to molecular compositions of raw materials, a model is optimized, and a production scheme is optimized. The method can be used to optimize the oil refining and petrochemical device in real time, maintain the device in the optimal state always, improve economic benefits, and reduce energy consumption.

Description

technical field [0001] The invention belongs to the technical field of petroleum refining and petrochemical production, and in particular relates to a molecular-level real-time optimization method. Background technique [0002] Real-time optimization (English full name Real Time Optimization, English abbreviation RTO) is a key link in refining and petrochemical enterprises to realize the integrated optimization of planning-scheduling-operation-control. Based on real-time optimization, production planning, scheduling, operation optimization, and operation control can be integrated as a whole, and the optimization target can be truly decomposed and closed-loop controlled from top to bottom, from global to local. Real-time optimization can adjust the production plan in real time according to changes in production conditions, market factors, and enterprise plans, so that the entire production can continue to be in the optimal state (such as figure 1 shown). Based on real-time ...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCG05B19/41865G05B2219/32252Y02P90/02
Inventor 何恺源侯卫锋苏宏业
Owner SYSPETRO TECH CO LTD
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