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Automatic control method and equipment for C3 liquid phase hydrogenation reactor

A liquid-phase hydrogenation and reactor technology, applied in non-electrical variable control, hydrogenation to hydrocarbons, comprehensive factory control, etc., can solve problems such as poor propylene selectivity, and achieve the effect of improving propylene selectivity

Active Publication Date: 2021-11-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of this, the present invention provides a carbon three liquid phase hydrogenation reactor optimization control method and equipment, at least solve the problem of poor propylene selectivity in the prior art

Method used

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  • Automatic control method and equipment for C3 liquid phase hydrogenation reactor
  • Automatic control method and equipment for C3 liquid phase hydrogenation reactor
  • Automatic control method and equipment for C3 liquid phase hydrogenation reactor

Examples

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Effect test

Embodiment 1

[0048] There are two main operating conditions affecting the carbon three-phase liquid-phase hydrogenation reactor: inlet hydrogen-alkyne ratio and material temperature.

[0049] Such as figure 1 Shown, a kind of carbon three liquid phase hydrogenation reactor automatic control method, comprises:

[0050] Step S101: Acquiring the inlet and outlet parameters of the carbon three-phase liquid-phase hydrogenation reactor;

[0051] Inlet and outlet parameters, including: carbon three liquid phase hydrogenation reactor inlet material temperature, carbon three liquid phase hydrogenation reactor inlet material hydrogen-alkyne ratio, carbon three liquid phase hydrogenation reactor inlet material pressure, carbon three liquid phase hydrogenation reaction Material flow at the inlet of the reactor, MAPD concentration at the inlet of the carbon three-phase liquid-phase hydrogenation reactor, hydrogen flow at the inlet of the carbon three-liquid-phase hydrogenation reactor, hydrogen concen...

Embodiment 2

[0087] Such as figure 2 As shown, an automatic control device for a carbon three-phase liquid-phase hydrogenation reactor, including: a control server, a network device system control network and an embedded server, etc.

[0088] The control server includes at least a memory storing executable instructions;

[0089] A processor, the processor runs the executable instructions in the memory, so as to realize the automatic control method of the carbon three-phase liquid-phase hydrogenation reactor in Embodiment 1.

[0090] The processor (controller) is located in the distributed control system of the carbon three-phase liquid-phase hydrogenation reactor, that is, the DCS system or the server connected to the DCS. The control logic program in the controller collects the concentration of MAPD at the outlet, and automatically collects and analyzes the result data for storage. Inside a fixed memory unit (storage).

[0091] The control logic program in the controller automatically ...

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Abstract

The invention discloses an automatic control method and equipment for a C3 liquid phase hydrogenation reactor. The automatic control method for the C3 liquid phase hydrogenation reactor comprises the following steps: acquiring inlet and outlet parameters of the C3 liquid phase hydrogenation reactor; obtaining the outlet MAPD concentration of the C3 liquid phase hydrogenation reactor based on the inlet and outlet parameters, wherein the outlet MAPD concentration is the volume content of methylacetylene and propadiene in a hydrogenation product; and adjusting corresponding parameters in the inlet and outlet parameters so that the outlet MAPD concentration is kept in a set interval value. The method and the equipment can achieve the purpose of improving the propylene selectivity.

Description

technical field [0001] The invention belongs to the field of petrochemical industry, and more specifically relates to an automatic control method and equipment for a carbon three-liquid-phase hydrogenation reactor. Background technique [0002] Ethylene technology is the leading technology in petrochemical industry, and the level of ethylene technology is regarded as an important symbol to measure the development level of a country's petrochemical industry. The trienes (ethylene, propylene, butadiene) produced by the ethylene cracking unit are the basic raw materials of the petrochemical industry, and the production of trienes is the main symbol to measure the development level of a country's petrochemical industry. [0003] After steam cracking and separation of liquid hydrocarbon raw materials such as naphtha in the ethylene cracking unit, the C3 fraction contains propylene, propane, and a small amount of methyl acetylene and propadiene (abbreviated as MAPD). The content o...

Claims

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Application Information

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IPC IPC(8): G05D27/02C07C5/05C07C5/09C07C11/06
CPCG05D27/02C07C5/05C07C5/09C07C11/06Y02P90/02
Inventor 卫国宾铁锴戚文新刘海江
Owner CHINA PETROLEUM & CHEM CORP
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