Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pipe-bundle-builtin isothermal-shift reactor

A technology of isothermal transformation and reactor, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of difficult control of temperature rise, influence on structural reliability, and many materials used, so as to avoid large temperature rise, The effect of short weld seams and unlimited height

Active Publication Date: 2016-04-06
CHANGZHENG ENG
View PDF11 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the device can transfer heat with different media through the built-in tube bundle, the reactor has a hot-wall structure (the high-temperature medium is in direct contact with the wall), and is equipped with a large tube plate and a built-in large head, and uses a lot of materials; and its The solder joints of heat exchange tubes and tube sheets are exposed to the high temperature zone of the bed, which affects the reliability of the structure; in addition, the reaction is an adiabatic reaction, and the inherent temperature rise of this type of reaction is not easy to control and other shortcomings still exist

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
  • Pipe-bundle-builtin isothermal-shift reactor
  • Pipe-bundle-builtin isothermal-shift reactor
  • Pipe-bundle-builtin isothermal-shift reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 and figure 2 As shown, an isothermal shift reactor with a built-in tube bundle includes a pressure-bearing shell (4), a feed gas inlet (11), a shift gas outlet (12), and a boiler water inlet ( 1), the boiler water outlet (10) and the catalyst discharge port (2), and the catalyst basket (5) arranged in the pressure housing (4), the axial annular tube bundle (6), the central tube (7), Ring chamber body (14), and central tube bundle (13). The axial annular tube bundle (6) is connected with the boiler water outlet (10) by an expansion joint (9) to absorb the thermal expansion deformation difference between the tube bundle and the casing. The catalyst (8) is contained in the catalyst basket (5), outside the central tube (7) and in the gap of the axial annular tube bundle. Such as Figure 5 The shown axial annular tube bundle (6) is a boiler water distributor composed of the lower annular tube box (6-2) and the lower annular tube sheet (6-3), the upper a...

Embodiment 2

[0044] Such as image 3 and Figure 4 As shown, a built-in tube bundle isothermal shift reactor, which moves the central tube bundle (13) heat exchanger in the central tube (7) out of the reactor; the raw material gas enters from the upper raw material gas inlet (11) of the reactor, and is distributed to The annular cavity between the pressure-bearing shell (4) and the catalyst basket (5) enters the catalyst bed (8) through the hole array on the catalyst basket (5), reacts under the action of the catalyst, releases heat, and the reaction heat is large Part of it is taken away by the boiler water in the axial annular tube bundle (6) uniformly distributed in the bed, and the shifted gas after reaction is collected by the central tube (7) and leaves the reactor through the lower shifted gas outlet (12).

[0045] In the isothermal shift reactor with built-in tube bundle in another embodiment, the gas-gas heat exchanger located in the central tube (7)——the central tube bundle (13)...

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 a pipe-bundle-builtin isothermal-shift reactor. According to the pipe-bundle-builtin isothermal-shift reactor, axial annular pipe bundles, which are builtin and are uniformly distributed in a catalyst bed layer along circumferential direction, are adopted to shift out heat of reaction, so as to realize isothermal shift; and a central pipe bundle which is built in a central pipe is adopted to preheat raw material gas entering the reactor, so as to realize the builtin of a gas-gas heat exchanger. The isothermal-shift reactor comprises a pressure-bearing shell, a catalyst basket, the axial annular pipe bundles, the central pipe and the central pipe bundle; and the axial annular pipe bundles consist of upper and lower annular pipe boxes, upper and lower annular pipe sheets and heat exchange tubes. According to the pipe-bundle-builtin isothermal-shift reactor, due to builtin pipe bundles, the manufacturing cost of equipment is effectively reduced; due to an end-part bent structure for the heat exchange tubes, the size of the pipe sheets is effectively reduced; due to a heat insulating layer laid between the pipe sheets and the high-temperature catalyst bed layer, the contact between pipe end weld spots and a bed layer high-temperature area is effectively isolated, the probability of leakage is lowered, and the reliability of equipment is improved; and the pipe-bundle-builtin isothermal-shift reactor is compact in structure, low in manufacturing cost, relatively easy in maintenance, high in reliability, complete in function and high in applicability.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment, and relates to an isothermal shift reactor, in particular to an isothermal shift reactor with a built-in tube bundle. Background technique [0002] The CO shift reaction is a reversible, exothermic reaction, and its reaction equation is: [0003] [0004] When the CO content in the feed gas is high, the heat of reaction must be removed in time, otherwise the temperature of the shift gas will rise sharply, which will cause great damage to the catalyst in the shift furnace, which will directly reduce the life of the catalyst, and may directly The catalyst will be burned out; at the same time, the transformation reaction is a reversible reaction, and if the heat of reaction is not removed in time, the reaction will not proceed in depth. [0005] At present, the commonly used coal gasification processes are coal-water slurry gasification or pulverized coal gasification with coal as raw...

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 Applications(China)
IPC IPC(8): B01J8/02C01B3/16
Inventor 王守杰刘军霍耿磊李锡华甘晓雁刘春雷
Owner CHANGZHENG ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products