Multipurpose experimental reactor with overflow port and U-shaped pipe structure

Abstract

The utility model discloses a U-shaped tube structure multipurpose experimental reactor with an overflow port. The U-shaped tube structure multipurpose experimental reactor comprises a bubbling bed feeding port (1), a U-shaped tube (2), a ground filling and discharging port (3), a lifting lug (4), the overflow port (5), glass beads (6), a steel wire mesh (7), a to-be-tested sample filling area (8), a sand core (9), a trickle bed feeding port (10), a ground hollow plug (11) and a sealing plug (12). The utility model has the beneficial effects that the structure is simple, the cost is low, and not only can the requirement of a bubbling bed experiment be met, but also the requirement of a trickle bed experiment can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum product experimental equipment, in particular to a petroleum product experimental reactor. Background Art

[0002] In the process of oil hydrofining, a variety of fixed bed adsorbents (such as desulfurizers, dechlorinators, etc.) and catalysts are used, and the laboratory needs to conduct small-scale test evaluations of their performance (such as sulfur capacity, chlorine capacity, etc.). Commercially available evaluation devices are generally complex in structure, expensive, and have a single purpose, and cannot meet the requirements of both trickle beds and bubbling beds. Therefore, designing an experimental reactor with a simple structure and diverse functions can greatly improve the efficiency of small-scale test evaluations of petroleum product adsorbents and catalysts. Summary of the invention

[0003] The utility model aims to design a multi-purpose experimental reactor with a U-shaped tube structure and an overflow port to solve the problems mentioned in the above background technology.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A multi-purpose experimental reactor with a U-shaped tube structure and an overflow port, the main body of which is composed of a bubbling bed feed port 1, a U-shaped tube 2, a ground-mouth filling and unloading port 3, a lifting ear 4, an overflow port 5, a steel mesh 7, a sample loading area 8, and a sand core 9. The adsorbent or catalyst sample to be evaluated is loaded above the sand core 9, and the remaining dead volume is filled with glass beads 6. The sample loading area 8 and the glass beads 6 are separated by a steel mesh 7;

[0006] Furthermore, a multi-purpose experimental reactor with a U-shaped tube structure and an overflow port is equipped with a hollow ground glass stopper 11, and a trickle bed feed port 10 is provided on the top thereof;

[0007] Furthermore, the U-tube structure multi-purpose experimental reactor with an overflow port is equipped with a sealing plug 12 matching the overflow port 5 .

[0008] When a bubbling bed is required for evaluation, that is, the material passes through the adsorbent or catalyst bed from bottom to top, a metering pump can be used to pump the material into the reactor from the bubbling bed feed port 1, and the material passes through the U-shaped tube 2, the sand core 9, the sample filling area 8, the steel mesh 7, the glass beads 6 in sequence, and the treated material is collected from the overflow port 5 for sampling and analysis;

[0009] When a trickle bed is required for evaluation, that is, the material passes through the adsorbent or catalyst bed from top to bottom, the filling and unloading port 3 is plugged with a ground hollow plug 11 with a trickle bed feed port 10, and the overflow port 5 is blocked with a sealing plug 12. The material is then pumped into the reactor from the trickle bed feed port 10 by a metering pump. The material passes through the ground hollow plug 11, the filling and unloading port 3, the glass beads 6, the wire mesh 7, the sample loading area 8, the sand core 9, the U-shaped tube 2 in sequence, and the treated material is collected from the bubbling bed feed port 1 for sampling and analysis.

[0010] The reaction temperature of the reactor can be controlled by means of an electric furnace, a water bath, an oil bath, an ice bath, air cooling, heat exchange, etc.

[0011] The utility model has the beneficial effects of simple structure, low cost and easy switching between the bubbling bed and the trickling bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model, wherein 1 is the bubbling bed feed port, 2 is a U-shaped tube, 3 is a ground-mouth filling and unloading port, 4 is a lifting ear, 5 is an overflow port, 6 is glass beads, 7 is a wire mesh, 8 is a sample filling area to be tested, 9 is a sand core, 10 is a trickle bed feed port, 11 is a ground-mouth hollow plug, and 12 is a sealing plug. DETAILED DESCRIPTION

[0013] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings and embodiments, but these embodiments do not constitute any limitation to the essence and scope of the present invention.

[0014] A multi-purpose experimental reactor with a U-shaped tube structure and an overflow port designed by the utility model was trial-produced. The main part of the reactor consists of a bubbling bed feed port 1, a U-shaped tube 2, a ground-mouth filling and unloading port 3, a lifting ear 4, an overflow port 5, a wire mesh 7, a sample loading area 8, and a sand core 9. The non-main structure includes a trickle bed feed port 10, a ground-mouth hollow plug 11, and a sealing plug 12. The ground-mouth hollow plug 11 with a trickle bed feed port 10 on the top is connected to the ground-mouth loading and unloading port 3 in the main structure; the sealing plug 12 is connected to the overflow port 5 in the main structure. Example 1

[0015] Evaluation of zinc oxide desulfurizer in bubbling bed.

[0016] Take 30mL of zinc oxide desulfurizer from a company in Wuhan, Hubei, and load it into the sample filling area 8 above the sand core 9 from the filling and unloading port 3 of the reactor, separate it with a wire mesh 7, and install φ5mm glass beads 6 until it is flush with the overflow port 5. Use an iron frame with a clamp to fix the lifting ear 4 of the reactor to make it vertical.

[0017] Take the oil sample of the unqualified line of the stripping tower of the waste lubricating oil hydrogenation unit of a factory in Tianmen, Hubei, and pump it from the bubbling bed inlet 1 at a speed of 2mL / min with a plunger pump, and pass through the U-tube 2, sand core 9, zinc oxide desulfurizer, wire mesh 7, glass beads 6 in sequence, and take a sample at the overflow port 5, and analyze the total sulfur content with a fluorescent sulfur analyzer. The total sulfur of the raw material is 2.3mg / L, and the total sulfur of the oil sample after desulfurization is less than 0.1mg / L. Example 2

[0018] Evaluation of dechlorinators in trickle beds.

[0019] Take 30mL of dechlorinating agent produced by a company in Wuhan, Hubei, and load it into the sample filling area 8 above the sand core 9 from the filling and unloading port 3 of the reactor. Separate it with a wire mesh 7, and install φ5mm glass beads 6 until it is flush with the overflow port 5. Plug the loading and unloading port with a hollow ground plug 11, plug the overflow port with a sealing plug 12, and use the lifting ear part to vertically hang the reactor in a 120℃ oil bath.

[0020] Take the oil sample of the unqualified line of the stripping tower of the waste lubricating oil hydrogenation unit of a factory in Tianmen, Hubei Province, and pump it from the trickle bed inlet 10 with a plunger pump at a speed of 2mL / min, and pass through the ground hollow plug 11, the filling and unloading port 3, glass beads 6, wire mesh 7, dechlorination agent, sand core 9, U-tube 2 in sequence, and take a sample at the bubbling bed inlet 1, and analyze the chlorine content with a microcoulomb analyzer. The total chlorine of the raw material is 1.3mg / L, and the total chlorine of the oil sample after desulfurization is less than 0.1mg / L.

Claims

1. A multi-purpose experimental reactor with a U-shaped tube structure and an overflow port, characterized in that: The reactor comprises a main structure and a non-main structure. The main structure comprises a bubbling bed feed port (1), a U-shaped tube (2), a ground-mouth filling and unloading port (3), a lifting ear (4), an overflow port (5), glass beads (6), a steel wire mesh (7), a sample loading area (8) and a sand core (9); the non-main structure comprises a trickle bed feed port (10), a ground-mouth hollow plug (11) and a sealing plug (12); the ground-mouth hollow plug (11) with a trickle bed feed port (10) on the top is connected to the ground-mouth loading and unloading port (3) in the main structure, and the sealing plug (12) is connected to the overflow port (5) in the main structure.

2. The multi-purpose experimental reactor with a U-shaped tube structure and an overflow port according to claim 1, characterized in that: The sample loading area (8) to be tested is above the sand core (9), the wire mesh (7) is placed above the sample loading area (8), and the glass beads (6) are placed above the wire mesh (7).

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