CN-121988175-A - Multifunctional membrane separation test equipment and application method thereof

CN121988175ACN 121988175 ACN121988175 ACN 121988175ACN-121988175-A

Abstract

The application provides multifunctional membrane separation test equipment and a using method thereof, and relates to the technical fields of various membrane separation tests and process methods. The multifunctional membrane separation testing equipment comprises a liquid inlet module, an air inlet module, a separation membrane assembly to be tested, wherein the separation membrane assembly to be tested comprises a separation membrane body to be tested and a shell, the separation membrane body to be tested is arranged in the shell, an inner cavity of the shell is divided into a first cavity and a second cavity, the first cavity is provided with a feed inlet and a seepage residue, the liquid inlet module and the air inlet module are both communicated with the feed inlet, and the second cavity is configured to be communicated with a first valve, a second valve and a third valve, and a permeate collection module for collecting at least one permeate component in the second cavity. The first valve can be used for providing purge gas for the second cavity and collecting at least one penetrating solution, the second valve is communicated with the penetrating solution collecting module, and the third valve is connected with the gas chromatographic analysis device. The application solves the defect caused by single function of the existing membrane separation testing device.

Inventors

ZHANG XIN
SHAO ZONGMING
YIN YONG
GONG DIAN
HUANG MENGJIE
ZHANG BO
CAO CHUN
HUANG XUDONG
WU LIPING

Assignees

中石油(上海)新材料研究院有限公司
中国石油天然气股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241106

Claims (11)

1. Multifunctional membrane separation test equipment, its characterized in that includes: the liquid inlet module is used for providing raw material liquid to be separated; A gas inlet module for providing a feed gas to be separated; The separation membrane assembly comprises a separation membrane body to be detected and a shell, wherein the separation membrane body to be detected is arranged in the shell and divides the inner cavity of the shell into a first cavity and a second cavity; the first cavity is provided with a feed inlet and a residual seepage liquid inlet, and the liquid inlet module and the air inlet module are connected with the feed inlet; a permeate collection module for collecting at least one permeate component within the second chamber; The first valve can be used for providing purge gas for the second cavity and collecting at least one penetrating solution, the second valve is connected with the penetrating solution collecting module, and the third valve is connected with the gas chromatographic analysis device.
2. The multi-functional membrane separation testing device of claim 1, further comprising a retentate collection module for collecting retentate components within the first chamber; The retentate outlet is connected with the ventilation system and the retentate collecting module, and the retentate collecting module is also connected with the liquid inlet module.
3. The multifunctional membrane separation test equipment according to claim 2, further comprising a cooling module, wherein the cooling module comprises a cooling temperature controller, a heat exchange tube and a refrigerant medium storage device; The cooling temperature controller is connected with a refrigerant medium storage device through a first exchange flow channel, and the refrigerant medium storage device is arranged in the permeate collection module; The cooling temperature controller provides cooling medium for the heat exchange pipe through a second exchange flow channel, and the heat exchange pipe is arranged in the retentate collecting module.
4. A multifunctional membrane separation testing device according to any of claims 1-3, further comprising a heating module; The inlet end of the heating module is connected with the outlet end of the liquid inlet module and the outlet end of the air inlet module, and the outlet end of the heating module is connected with the feeding port.
5. The multifunctional membrane separation test apparatus of claim 4, wherein a first channel and a second channel are provided between the heating module and the feed inlet; The outlet end of the heating module is connected with the inlet end of the first channel and the inlet end of the second channel; The first channel is provided with a first control valve for controlling the on-off of the first channel, and the second channel is provided with a second control valve for controlling the on-off of the second channel.
6. The multifunctional membrane separation testing apparatus of claim 5, further comprising a buffer tank disposed on the second channel and connected to the second control valve.
7. The multifunctional membrane separation testing apparatus of claim 5, further comprising an explosion-proof incubator; the explosion-proof incubator is configured to cover an area where the first channel, the second channel and the separation membrane assembly are located.
8. A method of using a multifunctional membrane separation test apparatus, characterized in that it is applied to the multifunctional membrane separation test apparatus according to any one of claims 1 to 7, the method comprising: Determining a feeding module according to the type of the separating membrane body to be detected and communicating the feeding module with the corresponding feeding module, wherein the feeding module comprises a liquid inlet module and an air inlet module; determining and executing a corresponding sampling mode according to the type of the separating membrane body to be detected, wherein the sampling mode comprises a first sampling mode, a second sampling mode and a third sampling mode; the first sampling mode includes opening a first valve and collecting an aqueous osmotic component solution; the second sampling mode includes opening a second valve and collecting a permeate component sample in the permeate collection module; the third sampling mode includes opening a third valve and collecting permeate component gas; And determining the separation performance of the separation membrane to be detected according to any one of the collected osmotic component aqueous solution, the osmotic component sample and the osmotic component gas.
9. The method according to claim 8, wherein determining the feeding module according to the type of the separation membrane body to be detected and communicating the corresponding feeding module comprises: When the separating membrane body to be detected is any one of a nanofiltration separating membrane, a vapor permeation separating membrane and a permeation vaporization separating membrane, the liquid inlet module is communicated with the feeding port; When the separating membrane body to be detected is a gas separating membrane, the gas inlet module is communicated with the feed inlet.
10. The method according to claim 8, further comprising a heating module, wherein an inlet end of the heating module is connected to the air inlet module and the liquid inlet module, and an outlet end of the heating module is connected to the feed inlet, and further comprising: when the sampling mode is a first sampling mode, controlling the heating module to be in an unheated state; When the sampling mode is the second sampling mode or the third sampling mode, the heating module is controlled to be in a heating state, a first heating temperature is determined according to the type of the separation membrane body to be detected, and the heating module is controlled to be heated to be corresponding to the first heating temperature.
11. The method of claim 10, further comprising a buffer tank having an inlet end connected to the outlet end of the heating module and an outlet end connected to the feed inlet, wherein the method further comprises: when the sampling mode is a first sampling mode, the communication between the inlet end of the buffer tank and the outlet end of the heating module and the communication between the outlet end of the buffer tank and the feeding port are cut off; when the sampling mode is a second sampling mode, if the separating membrane body to be detected is a steam permeation separating membrane, communicating the inlet end of the buffer tank with the outlet end of the heating module, and communicating the outlet end of the buffer tank with the feeding port; If the separation membrane body to be detected is a pervaporation separation membrane, the communication between the inlet end of the buffer tank and the outlet end of the heating module and the communication between the outlet end of the buffer tank and the feed inlet are cut off; When the sampling mode is a third sampling mode, the inlet end of the buffer tank is communicated with the outlet end of the heating module, and the outlet end of the buffer tank is communicated with the feeding port.

Description

Multifunctional membrane separation test equipment and application method thereof Technical Field The application relates to the technical field of various separation membrane tests and process methods, in particular to multifunctional membrane separation test equipment and a using method thereof. Background A separation membrane is a medium with selective permeability that allows certain substances to pass through while trapping other substances, which may be molecules, ions or particles. The form of the membrane may be solid, liquid, or even gas. The fluid material separated by the membrane may be in a liquid state or a gaseous state. The intrinsic separation performance of the membrane can be obtained by analyzing the separated fluid substances. At present, the functionality of a film testing device in a laboratory is single, and generally, a film separation device can only perform specific types of tests and cannot meet diversified research requirements. When the test of different types of separation membranes needs to be carried out, researchers need to use a plurality of different devices, so that the waste of the space utilization rate of a laboratory is caused, the complicated experimental process is caused, the workload of vast researchers is greatly improved, and the experimental time is wasted. Meanwhile, the purchase of multiple dedicated devices will increase the investment and maintenance costs of laboratory equipment and result in an increase in operating costs. Therefore, a need exists for a multifunctional membrane separation testing apparatus and a method for using the same that solves at least one of the above-mentioned problems. Disclosure of Invention The multifunctional membrane separation test equipment and the application method thereof provided by the application have positive significance for separation tests of various types of membranes for laboratories. The multifunctional membrane separation testing device comprises a liquid inlet module, an air inlet module, a separation membrane assembly, a second valve and a third valve, wherein the liquid inlet module is used for providing raw material liquid to be separated, the air inlet module is used for providing feed gas to be separated, the separation membrane assembly comprises a separation membrane body to be detected and a shell, the separation membrane body to be detected is arranged in the shell and divides an inner cavity of the shell into a first cavity and a second cavity, the first cavity is provided with a feed inlet and a residual port, the liquid inlet module and the air inlet module are connected with the feed inlet, the second cavity is configured to be connected with the first valve, the second valve and the third valve, the permeate collection module is used for collecting at least one permeate component in the second cavity, the first valve can be used for providing purge gas for the second cavity and collecting at least one permeate solution, the second valve is connected with the permeate collection module, and the third valve is connected with the gas chromatography analysis device. In one possible embodiment, the device further comprises a retentate collecting module for collecting retentate components in the first cavity, wherein the retentate port is connected with the ventilation system and the retentate collecting module, and the retentate collecting module is further connected with the feed module. In one possible implementation mode, the device further comprises a cooling module, wherein the cooling module comprises a cooling temperature controller, a heat exchange tube and a refrigerant medium storage device, the cooling temperature controller is connected with the refrigerant medium storage device through a first exchange flow channel, the refrigerant medium storage device is arranged in the permeate collection module, the cooling temperature controller provides cooling medium for the heat exchange tube through a second exchange flow channel, and the heat exchange tube is arranged in the retentate collection module. In one possible embodiment, the device further comprises a heating module, wherein the inlet end of the heating module is connected with the outlet end of the liquid inlet module and the outlet end of the air inlet module, and the outlet end of the heating module is connected with the feeding port. In one possible implementation mode, a first channel and a second channel are arranged between the heating module and the feeding hole, the outlet end of the heating module is connected with the inlet end of the first channel and the inlet end of the second channel, a first control valve for controlling the on-off of the first channel is arranged on the first channel, and a second control valve for controlling the on-off of the second channel is arranged on the second channel. In one possible embodiment, the device further comprises a buffer tank disposed on the second channel and connected to the s