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Tester for simulating high-temperature corrosion in continuous distillation apparatus

A technology of test device and distillation device, applied in measurement device, weather resistance/light resistance/corrosion resistance, instruments, etc., can solve problems such as inaccurate experimental results and inability to truly reflect corrosion problems.

Active Publication Date: 2012-06-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This difference makes the experimental results inaccurate and cannot truly reflect the corrosion problems in petroleum refining and petrochemical processes.

Method used

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  • Tester for simulating high-temperature corrosion in continuous distillation apparatus
  • Tester for simulating high-temperature corrosion in continuous distillation apparatus

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Experimental program
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Embodiment Construction

[0020] like figure 1 As shown, the device mainly includes a feed module, a kettle-type corrosion detection module, a vacuum and its control module, a temperature and pressure control module, a flow control module and other auxiliary modules. The feeding module includes an experimental oil raw material tank 4 with an electric heating jacket, which can be controlled to preheat to no more than 60°C. The raw material tank 4 is used to contain the medium used in the experiment, such as the crude oil after electric desalting or the bottom oil of the atmospheric distillation tower. An electronic scale 1 is installed below the raw material tank 4, which can weigh the weight of the feed crude oil, and adjust the feed amount of crude oil according to the weight. The electric heating mantle outside the raw material tank 4 (not an innovative point in the present invention, so it is not marked in the figure) is used to heat the experimental medium in the raw material tank 4, and the first...

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Abstract

The invention provides a tester for simulating high-temperature corrosion in a continuous distillation apparatus, comprising a feeding module, a kettle corrosion detection module, a vacuumizing module, a control module of the vacuumizing module and a temperature and pressure control module, wherein the feeding module comprises a filter 2, an experiment oil material tank 4 and a plunger-type feeding pump 5; the kettle corrosion detection module comprises a reaction kettle 19 with condensers 14 and 15; a nitrogen inlet 8, the first condenser 14 and the second condenser 15 are arranged on a cover of the reaction kettle 19; the first condenser 14 is connected with a discharge tank 20, and the second condenser 15 is orderly connected with a vacuum cold trap 10, a vacuum buffer tank 12 and a vacuum pump 11 of the vacuumizing module. According to the invention, accurate simulation of a corrosion problem in a continuous industrial process can be realized by continuously updating experiment medium of the corrosion test part, and real simulation problems of gas-liquid phase corrosion in petroleum refining and chemical processes, such as continuous normal pressure distillation, reduced pressure distillation and the like, are solved.

Description

technical field [0001] The invention relates to a test device for simulating high-temperature corrosion in a continuous distillation device. The device can simulate the corrosion behavior of a medium on flow-through equipment and pipeline materials in a continuous industrial production process, and can simultaneously monitor the corrosion speed in gas phase and liquid phase. Background technique [0002] The flow-passing parts of continuous industrial installations such as petroleum refining and petrochemical industries, if the materials such as pipelines, pump casings, and reaction towers, will be corroded by the flow medium. Usually, the static high-temperature test device and the spray test device are used to simulate the corrosion of wetted parts of continuous industrial devices. For example, the invention patent with the application number of 200820121143 discloses a set of experimental equipment for static high-temperature naphthenic acid corrosion. By filling the cont...

Claims

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Application Information

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IPC IPC(8): G01N17/00
Inventor 屈定荣刘小辉蒋秀张艳玲
Owner CHINA PETROLEUM & CHEM CORP
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