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Hydrogenation reactor beacon tower control method

A technology for a hydrogenation reactor and a control method, which is applied in chemical instruments and methods, hydrocarbon oil treatment control/regulation, instruments, etc., can solve problems such as unfavorable reactors and downstream units running smoothly, fluctuations in the amount of cold hydrogen, etc. The effect of running stability, reducing temperature fluctuation and smooth running

Active Publication Date: 2018-08-17
BEIJING CENTURY ROBUST TECH
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Problems solved by technology

Usually, the reactor is an exothermic reaction, and cold hydrogen is used as a cooling measure to achieve stable control of the reactor temperature by adjusting the amount of cold hydrogen. However, the reactor temperature is often affected by the inlet feed flow rate and feed temperature changes, resulting in cold The fluctuation of hydrogen amount is not conducive to the smooth operation of the reactor and downstream units

Method used

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  • Hydrogenation reactor beacon tower control method
  • Hydrogenation reactor beacon tower control method
  • Hydrogenation reactor beacon tower control method

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Embodiment Construction

[0029] Aiming at the new method proposed by the present invention, it will be described below in conjunction with an example of industrial application.

[0030] In a hydrogenation refining unit, after the raw material is pretreated, it is mixed with hydrogen in the hydrogenation reactor for hydrogenation reaction to remove harmful impurities in the raw material and improve the purity of the raw material. The schematic diagram of the reactor is as follows figure 1 As shown, the reactor inlet is equipped with a flow measuring instrument FI_IN and a temperature measuring instrument TI_IN to measure the change of the oil material at the reactor inlet in real time, and the reactor temperature TC_RCT is adjusted through the cold hydrogen valve. Affected by fluctuations in the upstream of the reactor, the oil flow rate and temperature at the reactor inlet will also fluctuate frequently, which in turn will affect the bed temperature of the reactor, causing fluctuations in the amount of...

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Abstract

The invention discloses a hydrogenation reactor beacon tower control method, FI_IN is an oil material feeding flow rate measuring instrument; TC_IN is a furnace inlet oil material temperature measuring instrument; TC_RCT is a reactor bed temperature controller; beacon tower control related calculating and processing is performed in a beacon tower controller, and finally outputted to a cold hydrogen amount regulating valve; the hydrogenation reactor beacon tower control method is based on an idea of dynamic and static balance of materials and energy of the whole system, starts from the perspective of the overall smooth operation of the whole process, and integrates the dynamic relationship between parameters of the upstream and downstream of a reactor unit, when upstream working conditionschange, the upstream working conditions are quickly and effectively obtained, in-time beacon tower control is performed, and remote echoes between the reactor and a downstream process unit can be integrally intelligently controlled.

Description

technical field [0001] The invention belongs to the technical field of process industry production, and relates to a method for controlling a beacon of a hydrogenation reactor. The method can be applied to the design of a control scheme of a hydrogenation reactor in a process industry production device. Background technique [0002] In refining and chemical production, the hydrogenation reactor is the key equipment that affects the distribution and purity of the target product. Therefore, the efficient and stable operation of the reactor is very important. In the daily operation of the hydrogenation reactor, the stable control of the reactor temperature has always been a key indicator to measure the smooth operation of the reactor, and the stability of the reactor temperature is directly related to the consumption of catalyst and hydrogen, and also affects the downstream separation smooth operation of the unit. Usually, the reactor is an exothermic reaction, and cold hydrog...

Claims

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Application Information

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IPC IPC(8): B01J19/00C10G49/26G01D21/02
Inventor 李全善王文新王曦
Owner BEIJING CENTURY ROBUST TECH
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