Pressurized carbonation reaction apparatus and its method

Patent metadata

Field	Value
Publication number	US-10913040-B2
Application number	US-201715826433-A
Country	US
Kind code	B2
Filing date	Nov 29, 2017
Priority date	May 29, 2015
Publication date	Feb 9, 2021
Grant date	Feb 9, 2021

Abstract

A pressurized carbonation reaction apparatus and method thereof are provided. The apparatus comprises: an atomizing gas tank, a plurality of compressors, a plurality of buffer tanks, a plurality of pre-heaters, a pressurized liquid tank, a nozzle, a raw material tank, a carbon dioxide tank, a high-pressure reactor, a raw product tank, a feed pump, a plurality of pressure display gauges, a plurality of temperature controllers with display gauges and a plurality of back pressure valves. The method comprises: dissolving a solid material in a solvent, and storing a resulting liquid material in the raw material tank; introducing gas in the carbon dioxide tank to the high-pressure reactor, controlling temperatures of the high-pressure reactor and the pressurized liquid tank, and pumping, by the feed pump, the liquid material into the pressurized liquid tank to ensure a pressure difference between the pressurized liquid tank and the high-pressure reactor; opening a second check valve, and ensuring that the liquid material reacts with a carbon dioxide atmosphere in the high-pressure reactor after being atomized via the nozzle under a stable pressure difference between the high-pressure reactor and the pressurized liquid tank; and ensuring that when the liquid material in the high-pressure reactor is at a corresponding liquid level, a fifth check valve is opened and discharge continues to obtain a reaction product.

First claim

The invention claimed is:

1. A pressurized carbonation reaction apparatus, comprising: a first gas tank with inert gas, a plurality of compressors, a plurality of first tanks, a plurality of pre-heaters, a nozzle, a second tank for storing raw material, a third tank for pressurizing the raw material, a second gas tank with carbon dioxide, a reactor, a fourth tank for storing raw product, a feed pump, a pressure display gauge, a temperature controller with display gauge and a plurality of back pressure valves;
an outlet of the first gas tank is connected to an inlet of a first compressor and a port of a first back pressure valve, an inlet of the first back pressure valve is connected to an outlet of the first compressor, and connected to an inlet of a first of the first tank via a first check valve, an outlet of the first of the first tank is connected to an inlet of a first pre-heater via a second check valve, an outlet of the first pre-heater is connected to a first inlet of the third tank;
an outlet of the second tank is connected to an inlet of the feed pump, an outlet of the feed pump is connected to an inlet of a second pre-heater, an outlet of the second pre-heater is connected to a second inlet of the third tank, an outlet of the third tank is connected to an inlet of the nozzle via a second check valve, an outlet of the nozzle is connected to a first inlet of the reactor, the first inlet of the reactor is provided in a top portion or a top side portion of the reactor; the nozzle being configured to atomize the raw material entering the reactor so that the raw material fully contacts and reacts with a carbon dioxide atmosphere in the reactor;
an outlet of the second gas tank is connected to an inlet of a second compressor and a port of a second back pressure valve, an inlet of the second back pressure valve is connected to an outlet of the second compressor, and connected to an inlet of a second of the first tank via a third check valve, an outlet of the second of the first tank is connected to an inlet of a third pre-heater via a fourth check valve, an outlet of the third pre-heater is connected to a second inlet of the reactor;
an outlet of the reactor is connected to an inlet of the fourth tank via a fifth check valve; the first of the first tank and the second of the first tank are both provided with pressure display gauges; the third tank and the reactor are both provided with temperature controllers with display gauges.

2. A method for pressurized carbonation reaction, wherein the pressurized carbonation reaction apparatus comprises:
a first gas tank with inert gas, a plurality of compressors, a plurality of first tanks, a plurality of pre-heaters, a nozzle, a second tank for storing raw material, a third tank for pressurizing the raw material, a second gas tank with carbon dioxide, a reactor, a fourth tank for storing raw product, a feed pump, a pressure display gauge, a temperature controller with display gauge and a plurality of back pressure valves;
an outlet of the first gas tank is connected to an inlet of a first compressor and a port of a first back pressure valve, an inlet of the first back pressure valve is connected to an outlet of the first compressor, and connected to an inlet of a first of the first tank via a first check valve, an outlet of the first of the first tank is connected to an inlet of a first pre-heater via a second check valve, an outlet of the first pre-heater is connected to a first inlet of the third tank;
an outlet of the second tank is connected to an inlet of the feed pump, an outlet of the feed pump is connected to an inlet of a second pre-heater, an outlet of the second pre-heater is connected to a second inlet of the third tank, an outlet of the third tank is connected to an inlet of the nozzle via a second check valve, an outlet of the nozzle is connected to a first inlet of the reactor, the first inlet of the reactor is provided in a top portion or a top side portion of the reactor;
an outlet of the second gas tank is connected to an inlet of a second compressor and a port of a second back pressure valve, an inlet of the second back pressure valve is connected to an outlet of the second compressor, and connected to an inlet of a second of the first tank via a third check valve, an outlet of the second of the first tank is connected to an inlet of a third pre-heater via a fourth check valve, an outlet of the third pre-heater is connected to a second inlet of the reactor; and
an outlet of the reactor is connected to an inlet of the fourth tank via a fifth check valve; the first of the first tank and the second of the first tank are both provided with pressure display gauges; the third tank and the reactor are both provided with temperature controllers with display gauges;
wherein the method for pressurized carbonation reaction comprises the following steps:
1) weighing a solid material and dissolving it in a solvent completely, obtaining a liquid material, storing the liquid material in the second tank, preparing the liquid material with a concentration of 0.1˜4.0 mol/L;
2) turning on the apparatus, a gas in the second gas tank is introduced into the reactor via the second compressor, controlling the temperatures of the reactor and the third tank, and then pumping the liquid material into the third tank by the feed pump to provide the third tank with pressure and ensuring a pressure difference between the third tank and the reactor;
3) after the temperatures and pressures of the reactor and the third tank are stabilized, opening the second check valve and ensuring that the liquid material fully contacts and reacts with a carbon dioxide atmosphere in the reactor after being atomize nozzle under a stable pressure difference between the reactor and the third tank;
4) ensuring opening the fifth check valve when the liquid material in the reactor is at a corresponding liquid level, continuously discharging and obtaining a reaction product.

3. The method for pressurized carbonation reaction as claimed in claim 2 , wherein in step 2), the temperatures of the reactor and the third tank are 10˜100° C.

4. The method for pressurized carbonation reaction as claimed in claim 2 , wherein in step 2), the pressure of the reactor is 0.1˜15.0 MPa, the pressure of the third tank is 2.0˜20.0 MPa, the pressure of the reactor being lower than that of the third tank.

5. The method for pressurized carbonation reaction as claimed in claim 2 , wherein in step 2), the pressure of the third tank is achieved by pumping the liquid material, or by pumping inert gas by the first compressor to obtain desired pressure; the pressure of the reactor is achieved by pumping carbon dioxide by the second compressor to obtain desired pressure.

6. The method for pressurized carbonation reaction as claimed in claim 2 , wherein in step 3), the pressure of the third tank is controlled to be 10.0 MPa by pumping inert gas by the first compressor; the pressure of the reactor is controlled to be 4.0 MPa by pumping carbon dioxide by the second compressor.

7. The method for pressurized carbonation reaction as claimed in claim 2 , wherein in step 4), the height of the liquid level in the reactor is controlled by the fifth check valve to achieve continuous and stable discharge of the reaction product.

Assignees

• Univ Xiamen

Inventors

• Li Jun
• Liu Qunhong
• Wei Wenxin
• Zhu Bao
• Hu Xiaohui
• Wang Hongtao
• Su Yuzhong
• Hong Yanzhen

Classifications

• C01B32/60

  Preparation of carbonates or bicarbonates in general (of percarbonates C01B15/10; of specific carbonates or bicarbonates according to the cation C01B-C01G) · CPC title

• B01J2219/00182

  controlling the level of reactants in the reactor vessel · CPC title

• B01J19/24

  Stationary reactors without moving elements inside (B01J19/08, B01J19/26 take precedence; with stationary particles B01J8/02) · CPC title

• B01J10/002

  carried out in foam, aerosol or bubbles · CPC title

• B01J3/04 Primary

  Pressure vessels, e.g. autoclaves · CPC title