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Rectifying tower beacon tower control method

A control method and rectification tower technology, applied in the direction of distillation adjustment/control, program control, computer control, etc., can solve the problems affecting the stable steam volume in the tower bottom and unfavorable operation of the rectification tower system

Active Publication Date: 2018-06-22
BEIJING CENTURY ROBUST TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tray temperature in the stripping section is often affected by the feed flow rate and feed temperature of the rectification tower, which affects the stability of the steam volume in the tower bottom, which is not conducive to the smooth operation of the rectification tower system

Method used

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  • Rectifying tower beacon tower control method
  • Rectifying tower beacon tower control method
  • Rectifying tower beacon tower control method

Examples

Experimental program
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Embodiment Construction

[0029] With regard to the new method proposed by the present invention, an example of industrial application will be described below.

[0030] The debutanizer of an ethylene plant is a conventional rectification tower. The debutanizer functions to separate the upstream feed into the C4 component at the top of the tower and the C5 and C5 heavy components in the bottom of the tower. The tower system The heat source is provided by superheated steam. The schematic diagram of the debutanizer is as follows figure 1 As shown, the tower feed is respectively equipped with a flow measuring instrument FI_IN and a temperature measuring instrument TI_IN to measure the changes in the inlet oil of the debutanizer in real time, and the tray temperature TC_TB of the stripping section is adjusted by a steam valve. Affected by the fluctuations in the upstream of the debutanizer, the oil flow and temperature at the inlet of the tower will also fluctuate frequently, which in turn affects the temperatu...

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Abstract

The invention discloses a rectifying tower beacon tower control method. FI_IN is a rectifying tower material feeding flow rate measuring instrument; TC_IN is a tower inlet oil material temperature measuring instrument; TC_TB is a rectifying tower stripping section tower plate temperature controller; operation processing relevant to the beacon tower control is executed in a beacon tower controllerand is finally output to a steam regulating valve. The rectifying tower beacon tower control method is based on whole system material and energy dynamic and static balance idea; the operation starts from the whole process integral stable operation aspects; the dynamic relationship among all parameters of upstream and downstream of the rectifying tower unit are integrated; the upstream unit work condition information is fast and effectively obtained; the tower beacon control is timely implemented; the integral intelligent control of remote echoing between the rectifying tower unit and the downstream process unit can be realized.

Description

Technical field [0001] The invention belongs to the technical field of process industrial production, and relates to a rectification tower beacon control method, which can be applied to the control scheme design of a rectification tower in a process industrial production device. Background technique [0002] In the refining and chemical production, the distillation tower plays a pivotal role. The light and heavy components of the oil are separated in the distillation tower to obtain target products of different components. Therefore, whether the smooth operation of the distillation tower can be guaranteed is The key to improving the production level of the device. In the daily operation of the rectification tower, the heat source of the entire tower system is mainly provided by the bottom steam. The conventional control scheme in the stripping section is that the temperature of the stripping section tray is controlled by the bottom steam, and the temperature of the tray in the st...

Claims

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Application Information

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IPC IPC(8): B01D3/14B01D3/42G05B19/042
Inventor 李全善王文新王曦
Owner BEIJING CENTURY ROBUST TECH
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