Catalyst loading component and loading method thereof

A catalyst and filling technology, applied in chemical instruments and methods, separation methods, chemical/physical processes, etc., can solve problems such as damage to synergistic functions, influence of mass transfer exchange and reaction effects, and simultaneous satisfaction of catalytic rectification packing and filling methods. , to achieve the effect of reducing resistance, easy implementation and improving efficiency

Active Publication Date: 2009-12-09
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method or component is: the catalyst is solid, so the particle size cannot be too large, otherwise the catalyst cannot be fully utilized, but the catalyst particle size is too small and it is easy to be stratified with the filler, which damages the component to exert its catalytic reaction-separation synergy In addition, this component is also prone to channeling in the bed of the rectification tower, which affects its mass transfer, exchange and reaction effects
However, according to the retrieved literature, neither the catalytic rectification filler nor the filling method can satisfy the above three requirements at the same time.

Method used

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  • Catalyst loading component and loading method thereof
  • Catalyst loading component and loading method thereof
  • Catalyst loading component and loading method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The packing member and packing method of the present invention are implemented on a small-diameter cold mold tower.

[0053] The selected small-diameter cold mold tower is made of plexiglass with an inner diameter of φ48×8mm, and the distance between the trays is 100mm. The vertical sieve plate cap is a cylindrical cap with a height of 45mm, an inner diameter of φ16mm, and a hole of φ2.5×50mm on the cap. A circular hole is opened in the center of the tray with a diameter of φ12mm. The cap is placed in the center of the tray, and four downcomers with an inner diameter of φ6mm are evenly distributed around the cap. Use catalyst component f of the present invention (packing structure is referring to image 3 ), the catalyst is a φ3×3mm θ wire mesh ring, and the filling height is 30mm. Air is the gas phase and water is the liquid phase. A cold mold experimental device is established for cold mold tests to investigate the hydrodynamic properties of the filling method.

[0...

Embodiment 2

[0056] The packing member and packing method of the present invention are implemented on a small-diameter cold mold tower.

[0057] The selected small-diameter cold mold tower is made of plexiglass with an inner diameter of φ24×8mm, and the spacing between the trays is 100mm. The vertical sieve plate cap is a cylindrical cap with a height of 35mm and an inner diameter of φ12mm. The opening on the cap is φ1.5× 40mm. A round hole is opened in the center of the tray, the hole diameter is φ8mm, the cap is placed in the center of the tray, and five downcomers with an inner diameter of φ3mm are evenly distributed around the cap. Use catalyst member f of the present invention, the catalyzer of filling in the member is φ 3mm spherical catalyst, and packing height is 20mm with air as gaseous phase, and water is liquid phase, set up cold mold experiment device and carry out cold mold test, investigate the fluid of this filling method mechanical properties.

[0058] The results of the ...

Embodiment 3

[0060] The packing member and packing method of the present invention are implemented on a small-diameter cold mold tower.

[0061] The selected small-diameter cold mold tower has an inner diameter of φ32×8mm plexiglass material, and the spacing between the trays is 100mm. The vertical sieve plate cap is a cylindrical cap with a height of 45mm, an inner diameter of φ12mm, and a hole of φ2×40mm on the cap. A circular hole is opened in the center of the tray with a diameter of φ10mm. The cap is placed in the center of the tray, and four downcomers with an inner diameter of φ3mm are evenly distributed around the cap. Using the catalyst component f of the present invention, the catalyst loaded in the component is a clover-type catalyst, and the filling height is 30mm. With air as the gas phase and water as the liquid phase, a cold model experimental device was established to carry out the cold model test to investigate the hydrodynamic properties of the filling method.

[0062] ...

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Abstract

The invention relates to a catalyst loading component and a loading method thereof for a catalytic distillation tower, comprising a catalyst basket and a bracket. The catalyst basket consists of a basket body, an upper cover and a bottom support, wherein the upper cover is mounted at the upper end of the basket body; the bottom support is mounted at the lower part of the basket body; the height of the basket body from the bottom support of the catalyst basket to the upper cover is 1.1-2 times of the height of the portiforium part of a cover hood in the catalytic distillation tower; the height from the bottom support to the lower basket body is 1.1-2 times of the height of a down-flow spout above a column plate in the catalytic distillation tower; the bracket is in a frame structure matched with the cover hood; and the bottom support of the catalyst basket is arranged on the bracket. The method is used for the catalytic distillation tower, realizes forcible redistribution of liquid in the tower, prolongs the flowing path of a gas phase and a liquid phase in a catalyst bed, enhances the holdup of liquid in a reaction area and ensures the mass exchange and catalytic effect. The loading method has simple process, convenient operation, improved efficiency, low cost and easy actualization and is helpful to fully exert the action of the catalyst.

Description

technical field [0001] The invention relates to a catalyst packing component for a catalytic rectification tower and a packing method thereof, and the international patent classification number is proposed to be Int.Cl.B01J 19 / 00 (2006.01). Background technique [0002] The unit operation process that combines chemical reaction and rectification separation at the same time is called reactive distillation process. This process can continuously remove the reaction product from the system, and the heat released by the reaction can be used as part of the latent heat of vaporization required for rectification. Therefore, compared with the traditional chemical process, it has high reaction conversion rate, good selectivity, fixed Low investment, low operating costs and other advantages. Since the 1970s, catalytic distillation using heterogeneous catalysts has gradually been established as a branch of reactive distillation. In this process, the solid catalyst that has been proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/00B01J8/00B01J19/30
Inventor 侯凯湖杨红健田然张铁珍王兰芝田源于春梅马七民张文成刘文勇郭金涛王丹从丽茹李淑杰宋国玉
Owner PETROCHINA CO LTD
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