Fixed bed reactor gas phase residence time distribution measuring system and method

A fixed-bed reactor and residence time technology, applied in the direction of instruments and analytical materials, can solve problems such as insufficient precision, complicated operation, and long response time, and achieve the effects of reducing errors, simplifying the test process, and improving test accuracy

Active Publication Date: 2019-06-25
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has high requirements for the response time and accuracy of the concentration detection device, especially for gas phase fluids. The current concentration detectors are either too expensive for ...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fixed bed reactor gas phase residence time distribution measuring system and method
  • Fixed bed reactor gas phase residence time distribution measuring system and method
  • Fixed bed reactor gas phase residence time distribution measuring system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Embodiment 1: The system includes: a gas mass flow meter, a pressure sensor, a data collector, and a data calculation unit, that is, a host computer. Among them, the pressure sensor is a common pressure sensor on the market. The reason why the pressure sensor is used is that the pressure signal completely corresponds to the current signal, and the data acquisition frequency depends entirely on the sampling frequency of the data acquisition module. At the same time, the response time of the sensor It is short and can respond quickly to pressure changes inside the reactor. The sampling frequency of the data acquisition module set by the data collector is 2ms / time, which can convert the electrical signal into a digital signal, and then process the digital signal into a pressure drop value through the pressure drop calculation module in the data calculation unit, and pass the flow rate The calculation module and the distribution curve drawing module calculate the residence ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a fixed bed reactor gas phase residence time distribution measuring system and method. The system comprises a gas mass flow meter which is used for detecting the mass value andthe flow value of gas entering a fixed bed reactor in real time, a pressure sensor which is used for detecting pressure change electrical signals on both sides of the inlet/outlet of the fixed bed reactor in real time, a data collector which is used for collecting digital signals corresponding to the pressure change electrical signals at set sampling frequency, and a data calculation unit which is used for acquiring a gas phase residence time distribution curve corresponding to fluid in the fixed bed reactor based on each digital signal. According to the invention, the disadvantages that massspectrometry has high cost and complex operation, response time is too long, precision is not enough and the concentration change of a tracer cannot be truly reflected in an RTD determination methodare solved.

Description

technical field [0001] The invention belongs to the technical field of chemical engineering, and in particular relates to a fixed-bed reactor gas-phase residence time distribution measurement system and method. Background technique [0002] The residence time distribution (RTD) is one of the important parameters of the performance of continuous operation reaction or separation equipment; the see time experienced by the fluid micelles from entering the equipment to leaving the equipment is called the residence time, but due to the uneven flow velocity distribution of the fluid in the equipment Factors such as the diffusion of the fluid and the dead zone in the equipment cause the residence time of each fluid microgroup in the equipment to be different, thus forming the residence time distribution. [0003] At present, the method used for RTD determination is mainly the tracer response method, that is, the tracer is placed in a certain way at the entrance of the equipment, and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N7/00
Inventor 杨林林高越孙公权
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap