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Porous paste state bed reactor and reaction method

A technology of reactor and slurry bed, which is applied in porous slurry bed reactor and the reaction method belongs to the field of chemical machinery, which can solve problems such as difficult completion, achieve low consumption of reaction materials, shorten evaluation time, and uniform distribution of temperature and pressure Effect

Inactive Publication Date: 2006-09-13
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Screening the catalyst with the best catalytic activity from a library containing hundreds or thousands of target compounds or combinatorial catalysts with expected catalytic performance is difficult for traditional evaluation test methods

Method used

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  • Porous paste state bed reactor and reaction method
  • Porous paste state bed reactor and reaction method
  • Porous paste state bed reactor and reaction method

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0015] Process the reactor body IV with a 1G18Ni9Ti stainless steel material with a diameter of 30 cm and a height of 10 cm. On the reactor body IV, process 37 small hole reactors 11 with a diameter of 2 cm and a height of 8 cm. The interval between holes is 0.8 cm. The kettle cover II is made of 1G18Ni9Ti stainless steel, with a diameter of 30cm and a height of 6cm. The hollow stirring rod 10 is made of 1G18Ni9Ti stainless steel. The heating power of the electric furnace is 0.5kW. The operating temperature of the reactor is 50-220°C and the pressure is 0.1-5.0MPa.

Embodiment approach 2

[0017] Be 25cm in diameter and be 10cm in height TA2 titanium alloy material process reactor body IV, process 20 small hole reactors 11 with a diameter of 2.5cm and a height of 7.5cm according to the interval of 0.5cm; the reactor kettle cover is made of TA2 Titanium alloy material processing, diameter 25cm, height 5cm, hollow stirring rod is processed by TA2 titanium alloy material, the reaction gas is distributed to the gas delivery pipe through the spherical valve to reach each reactor hole, the gas delivery pipe is processed by stainless steel material, the inner diameter is 0.4cm, the wall thickness 0.2.5cm, heated by a heat conduction oil bath, the heating power is 1kW, the operating temperature of the reactor is 50-180°C, and the pressure is 0.1-3.0MPa.

Embodiment approach 3

[0019] Synthesis of dimethyl carbonate by methanol liquid-phase oxidative carbonylation reaction: Weigh 0.2g of each of the 37 prepared solid powder catalysts and put them into 37 reactor holes, then add 8ml of methanol respectively, cover the lid of the kettle, and tighten it to fix screw. Open the ball valve and fill with O 2 To 2.4MPa, keep for 30 minutes to check the airtightness, and then open the vent valve to discharge O 2 , and then recharge O 2 To 0.8MPa, continue to fill with CO until the total pressure is 2.4MPa, close the ball valve to completely separate each reactor hole to maintain an independent reaction system. Set the reaction temperature to 140°C, adjust the rotation speed to 700 rpm, and stop heating after 90 minutes of reaction. After the temperature in the kettle dropped to room temperature, samples were taken from each reactor hole, and the product composition was analyzed by HP6890 gas chromatograph.

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PUM

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Abstract

A porous slurry-bed reactor for screening and evaluating the catalysts used for gas-phase synthesis of methanol, dimether, dimethyl carbonate, etc is composed of reaction gas control unit, reactor covers, synchronous stirring system, reactors, and heater. The activities of multiple catalysts can be simultaneously researched. Its reaction method is also disclosed.

Description

1. Technical field [0001] The invention relates to a porous slurry bed reactor and a reaction method, which belong to the field of chemical machinery and relate to a porous slurry bed reactor and a reaction method suitable for high-throughput screening of catalysts for synthesizing methanol, dimethyl carbonate and other chemicals. 2. Background technology [0002] Catalyst design is the most challenging task in the field of heterogeneous catalysis research, although most catalysts currently used in industry are products designed through experience and reaction processes. However, how to design catalysts on a reasonable basis to ensure catalyst quality and stable performance is the goal of developing new catalysts. It is generally believed that the catalytic activity per unit surface area of ​​a catalyst mainly depends on its chemical composition, but for the same chemical composition, its catalytic properties depend to a large extent on the preparation method and preparation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/10
Inventor 任军李晋平李忠谢克昌
Owner TAIYUAN UNIV OF TECH
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