Device and method for achieving safe conveying of catalyst between mutually-exclusive environments

A technology of catalyst and environment, which is applied in the field of safe transportation of catalysts between mutually exclusive environments, can solve the problem of no carrier as gas, avoid transportation difficulties, have broad application prospects, and realize fully automatic detection and step control Effect

Pending Publication Date: 2018-12-07
SINOPEC ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, patent documents CN2527562Y, CN102049223A, and CN102837863A all propose catalyst delivery devices, but they are all methods and devices for adding catalysts to reactors such as fluidized beds or ebullated beds, which are essentially different from transporting catalysts between mutually exclusive
[0005] Patent document CN205613659U discloses a catalyst slurry conveying and reversing device, which is suitable for the technical field of catalyst preparation, and its conveying carrier is liquid, and there is no relevant record about the conveying carrier being gas

Method used

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  • Device and method for achieving safe conveying of catalyst between mutually-exclusive environments

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Embodiment 1

[0044] In one embodiment of the present invention, a method for safely transporting catalysts between hydrogen-oxygen environments is provided, utilizing figure 1 The shown device uses nitrogen as the inert gas and hydrogen as the pressure regulating gas, and the catalyst is transported from the hydrogen environment (environment A) to the oxygen environment (environment B) through five steps, which are:

[0045] Adjust the pressure of hopper 1 slightly lower than the hydrogen environment, fill the hopper 1 from the hydrogen environment, purge the hydrogen in the hopper 1 to a safe concentration with nitrogen, discharge the agent from the hopper 1 to the oxygen environment, and purge the oxygen in the hopper 1 to safe concentration;

[0046] Step 1: Open the pressure-regulating gas regulating valve 3, and the program-controlled on-off valve C 14 presses toward the hopper to keep the pressure of hopper 1 slightly lower than the pressure of the hydrogen environment; the different...

Embodiment 2

[0065] In another embodiment of the present invention, a method for safely transporting catalysts between oxygen-hydrogen environments is provided, utilizing figure 1 The shown device uses nitrogen as the inert gas and pressure regulating gas, and the catalyst is transported from the oxygen environment (environment A) to the hydrogen environment (environment B) through five steps, which are:

[0066] Adjust the pressure of hopper 1 slightly lower than the pressure of the oxygen environment, fill the hopper 1 from the oxygen environment, purge the oxygen in the hopper 1 to a safe concentration with nitrogen, discharge the agent from the hopper 1 to the hydrogen environment, and purge the hydrogen in the hopper 1 with nitrogen to a safe concentration;

[0067] Step 1: Open the pressure-regulating gas regulating valve 3, and the program-controlled switch valve C 14 presses toward the hopper, keeping the pressure of hopper 1 slightly lower than the pressure of the oxygen environme...

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Abstract

The invention relates to the technical field of oil refining and chemical engineering and provides a device and method for achieving safe conveying of a catalyst between mutually-exclusive environments. The device comprises a hopper, an operation control system, an environment A gas online detector, an environment B gas online detector, a material level gage, an exhaust pressure controller, a hopper pressure controller, an inert gas flow controller, a pressure-adjusting gas adjusting valve, an inert gas adjusting valve, an exhaust adjusting valve, a programmed switch valve A, a programmed switch valve B, a programmed switch valve C and a programmed switch valve D. The method comprises the five step sequences to convey the catalyst from the environment A to the environment B, wherein the five step sequences comprise that (1) the pressure of the hopper is adjusted to be slightly lower than that of the environment A; (2) the hopper is loaded with the catalyst from the environment A; (3) inert gas blows gas in the environment A in the hopper to the safe concentration; (4) the catalyst is discharged to the environment B from the hopper; and (5) the inert gas blows gas in the environmentB in the hopper to the safe concentration. The method solves the problem of continuous conveying of the catalyst between the mutually-exclusive environments and has wide application prospects in therelated industrial process.

Description

technical field [0001] The invention relates to the technical fields of oil refining and chemical industry, and more particularly relates to a device and method for safely transporting catalysts between mutually exclusive environments. Background technique [0002] In the field of oil refining and chemical technology, there are situations where catalysts are transported between mutually exclusive environments, such as the transport of catalysts between oxidizing and reducing environments, between high-temperature oil and gas environments and oxygen environments. Realizing the transportation of catalysts between mutually exclusive environments is a necessary requirement to ensure process safety and normal operation. [0003] Patent document CN1686603A discloses a method and device for reverse pressure conveying of catalysts. The method is mainly aimed at the reverse pressure conveying process, and transports solid particles from a constant low pressure container to a constant...

Claims

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Application Information

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IPC IPC(8): B65G53/58B65G53/66
CPCB65G53/58B65G53/66
Inventor 孙丽丽吴德飞李玉新袁忠勋
Owner SINOPEC ENG
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