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Method and system for operating a hydrocarbon production facility

A technology of hydrocarbons and facilities, applied in general control systems, control/regulation systems, computers used in chemical treatment processes, etc., can solve problems such as errors

Inactive Publication Date: 2005-10-26
FINA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] Using a linear solver to solve a model in which the simulated process exhibits nonlinear characteristics may cause errors in estimation

Method used

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  • Method and system for operating a hydrocarbon production facility
  • Method and system for operating a hydrocarbon production facility
  • Method and system for operating a hydrocarbon production facility

Examples

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Embodiment Construction

[0080] The following example is a small portion of the matrix for the aforementioned DEMEX unit. An extraction column is provided to receive the bottoms (heavies) from the vacuum column containing demetallized oil (DMD), resins and bitumen. Propane and butane are also available as extraction solvents. DMD and resin are collected from the top of the extraction column and passed to a flash drum to produce separated DMO and resin products. Bitumen is collected from the bottom of the extraction column. For this example, the dependent variable represents the product yield of the extraction column and the independent variable represents the temperature of the extraction column, so the combined activity of feed and production must be zero because of mass balance constraints. More specifically, the relationship that characterizes the extraction column yield is:

[0081] Yield (DMO) = a DMO ·T ext

[0082] Yield (resin) = a 树脂 ·T ext

[0083] Yield (asphalt) = a 沥青 ·T ext

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Abstract

A computerized system and method for operating a hydrocarbon or chemical production facility, comprising mathematically modeling the facility; optimizing the mathematic model with a combination of linear and non-linear solvers; and generating one or more product recipes based upon the optimized solution. In an embodiment, mathematic model further comprises a plurality of process equations having process variables and corresponding coefficients, and preferably wherein the process variables and corresponding coefficients are used to create a matrix in a linear program. The linear program may be executed via recursion or distributed recursion. Upon successive recursion passes, updated values for a portion of the process variables and corresponding coefficients are calculated by the linear solver and by a non-linear solver, and the updated values the process variables and corresponding coefficients are substituted into the matrix.

Description

field of invention [0001] The present invention relates to methods and systems for operating a hydrocarbon production facility, and more particularly to methods and systems for optimizing the operation of a hydrocarbon production facility using a computerized process simulator comprising a linear solver and a nonlinear solver system. Background of the invention [0002] Hydrocarbon production facilities typically include a variety of integrated controlled chemical and / or refinery processes used to produce desired products such as gasoline, diesel and asphalt. To effectively control and optimize this centralized processing, there are various difficulties: there are a large number of process variables, such as raw material composition, etc.; there are various types of processing units and equipment; various operating variables, such as processing rate, temperature, pressure, etc.; product indicators ; Market constraints, such as availability and product prices; mechanical cons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042G06Q50/04
Inventor T·G·梅斯J·M·肯克尔三世
Owner FINA TECH
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