Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for predicting and optimizing side yield of crude oil atmospheric distillation tower

A technology of atmospheric distillation column and crude oil distillation, which is applied in the fields of hydrocarbon distillation, petroleum industry, complex mathematical operations, etc., can solve the problems of large inertia, large lag, and strong interference of objects, so as to reduce energy consumption, improve economic benefits, and improve The effect of high value product yield

Active Publication Date: 2021-12-31
CHINA PETROLEUM & CHEM CORP
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method has theoretical reliability, the control algorithm involved cannot solve the multi-variable coupling control object, which makes the object have large inertia, large hysteresis, and strong interference phenomenon.

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
  • Method for predicting and optimizing side yield of crude oil atmospheric distillation tower
  • Method for predicting and optimizing side yield of crude oil atmospheric distillation tower
  • Method for predicting and optimizing side yield of crude oil atmospheric distillation tower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0056] Yield Prediction Example 2: Obtain the crude oil basic properties of the Bazhong-Fortis-Cass blended crude oil to be processed one day in advance through the crude oil rapid evaluation method. The crude oil basic properties data are shown in the following table 2-1.

[0057] table 2-1

[0058]

[0059] It can be known from Table 2-1 that the crude oil is an intermediate base crude oil. Calculate the crude oil similarity between the crude oil in Table 2-1 and the crude oil in Table 4, the calculation results show that the similarity S between the intermediate base crude oil ③, ⑧ crude oil and the crude oil reaches >0.95, and the average yield is taken as the The predicted yield of crude oil is shown in Table 2-2 below.

[0060] Table 2-2

[0061]

[0062] Yield Prediction Example 3: Obtain the crude oil basic properties of the Yizhong-Basra Light-Kass blended crude oil to be processed one day in advance through the crude oil rapid evaluation method. The crude oil...

Embodiment 7

[0086] Example 7 of Yield Prediction: Obtain the basic properties of crude oil that will be processed one day later by crude oil rapid evaluation means one day in advance, and the basic properties data of crude oil are shown in Table 7-1 below.

[0087] Table 7-1

[0088]

[0089]

[0090] It can be known from Table 7-1 that the crude oil is intermediate-naphthenic crude oil. Call the mapping module to calculate the crude oil similarity between the crude oil in Table 7-1 and the crude oil in Table 4. The calculation results show that the similarity S between the intermediate-naphthenic crude oil ② and the crude oil reaches >0.95, and the average yield The value is used as the predicted yield of the crude oil, see Table 7-2 below.

[0091] Table 7-2

[0092]

[0093] Yield Prediction Example 8: Obtain the crude oil basic properties of the Gresco blend crude oil to be processed one day in advance through the crude oil rapid evaluation method, and the crude oil basic p...

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 method for predicting and optimizing the side yield of a crude oil atmospheric distillation tower. The method involves a crude oil data acquisition module, a historical database, Aspen plus software and a mapping module. The prediction method comprises a historical mapping method and a steady-state model prediction method, and the optimization method comprises the following steps of: obtaining an optimal parameter set of the normal-pressure distillation tower operation of the crude oil by utilizing an optimization function of the model according to the established steady-state model and aiming at the change of the properties of the crude oil, the total drawing requirement, the requirement of a side-line product and the comprehensive economic benefit of the whole plant, and accurately simulating and calculating the crystallization temperatures of NH4Cl and NH4HS at the top of the atmospheric distillation tower are, so as to provide theoretical guidance for the optimization of the whole tower. Prediction and optimization of the side yield of crude oil atmospheric distillation and product properties are combined, planned production scheduling data can be provided for the downstream of the crude oil processing process, the yield of high-value products is increased, the energy consumption of a device is reduced, and the method has important significance on improvement of economic benefits of an oil refinery.

Description

technical field [0001] The invention belongs to the technical field of petroleum refining and petrochemical production, and in particular relates to a method for predicting and optimizing the side line yield of a crude oil atmospheric distillation tower. Background technique [0002] Atmospheric and vacuum devices are generally composed of an initial distillation tower system, an atmospheric distillation system and a vacuum distillation system. The working principle of these towers is the equilibrium separation of gas and liquid, and the required products are obtained through rectification. The main production task of the initial distillation tower is to extract most of the fractions before 190°C in the crude oil to provide high-quality raw materials for the reforming and ethylene cracking units; the main processes of the atmospheric distillation system are heating, distillation, and stripping. The main equipment is Heating furnace, atmospheric tower and stripping tower, its...

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): C10G7/00G06F17/15
CPCC10G7/00G06F17/15
Inventor 赵耀宋振宇刘双民尚春城唐未庆
Owner CHINA PETROLEUM & CHEM CORP