Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

On-line pretreatment device for sample gas of ethylene cracking furnace and installing method thereof

A pretreatment device, ethylene cracking furnace technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of continuous and stable operation of online chromatography, pipeline blockage, chromatographic column pollution, etc., to ensure long-term effective operation, Easy to use and maintain, analyze the effect of accurate data

Active Publication Date: 2014-05-28
CHINA PETROLEUM & CHEM CORP +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the actual operation of the cracking furnace online analysis system, the cracking online analysis sampling position is located at the product outlet of the cracking furnace. The sample temperature is high and contains a large amount of liquid heavy components such as water and tar. Because the sample inevitably contains liquid components and impurity particles, Pipelines are prone to blockage during the sampling process. In addition, due to the current problems in the pretreatment system, the samples entering the online chromatography contain more heavy components, causing contamination of the chromatographic column, and problems such as large fluctuation range and frequency of analysis data. Online chromatography Unable to operate continuously and stably, it is difficult to provide accurate basic data for controlling the cracking depth of the cracking furnace

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
  • On-line pretreatment device for sample gas of ethylene cracking furnace and installing method thereof
  • On-line pretreatment device for sample gas of ethylene cracking furnace and installing method thereof
  • On-line pretreatment device for sample gas of ethylene cracking furnace and installing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention is further described below in conjunction with embodiment. The scope of the present invention is not limited by these Examples.

[0024] The schematic diagram of online pretreatment device for sample gas of ethylene cracking furnace of the present invention is shown in figure 1 , the way of use is: confirm that the vortex cooler of the cracking furnace is in the closed state. After the installation of the device is completed, all the on-off valves are in the off state. First, confirm that the three-way switching valve 9 is in the B position and then open the on-off valve 10, and the medium-pressure steam 12 enters the heating pipeline Heat the device, and after 10 minutes of stabilization, open the switch valve 1 and turn on the cracking furnace vortex cooler, the sample gas 11 enters the ethylene cracking furnace sample gas online pretreatment device and passes through the liquid accumulation tank 2, the gas filter 6, and the pressure gauge 7 in s...

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 relates to an on-line pretreatment device for sample gas of an ethylene cracking furnace. The device is a box-type unit. An inlet of the device is connected with an outlet of a vortex cooler through a stainless steel pipeline. An outlet of the device is connected with a sample operation system on the front section of an on-line chromatograph through a stainless steel pipeline and finally enters the on-line chromatograph. After the device is adopted, a sampling system of an original cracking furnace does not need to be improved. The on-line pretreatment device is simple and convenient to install, works stably and reliably, is not influenced by the variation of the environment condition and is convenient to use and maintain due to the adoption of the integrated design.

Description

technical field [0001] The invention relates to a processing device for sample gas of an ethylene cracking furnace, in particular, an online pretreatment device for sample gas of an ethylene cracking furnace and an installation method thereof. Background technique [0002] The petrochemical industry is the pillar industry of the national economy, and the ethylene plant is the leading device in the petrochemical industry. There are many methods for ethylene production, but the tube furnace cracking technology is the most mature. Most of the ethylene in the world is cracked by the tube furnace. legally produced. As an important device in the petrochemical production process, the main control goal of the ethylene cracking furnace is to control the cracking depth, production capacity and product selectivity. Effective cracking operations depend on accurate on-line analysis of the cracked gas at the outlet of the quencher. Due to the high temperature, high water content and comp...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/06G01N30/14
Inventor 巴海鹏王国清张兆斌陈硕南秀琴薛丽敏司宇辰杜志国
Owner CHINA PETROLEUM & CHEM CORP
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
Eureka Blog
Learn More
PatSnap group products