Cellular oxygen carrier chemical-looping reforming reactor

A reforming reactor and honeycomb-shaped technology, which is applied in the field of honeycomb oxygen carrier reactors, can solve the problems of difficult to achieve isothermal operation, serious equipment wear, high energy consumption, etc., and achieve low energy loss, long service life of equipment, high conversion rate effect

Inactive Publication Date: 2013-07-17
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It should be pointed out that the traditional methane reforming circulating fluidized bed reactor needs to continuously drive the catalyst to circulate rapidly, which not only consumes a lot of energy, but also causes serious wear and tear on the equipment, and it is not easy to achieve isothermal operation

Method used

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  • Cellular oxygen carrier chemical-looping reforming reactor
  • Cellular oxygen carrier chemical-looping reforming reactor
  • Cellular oxygen carrier chemical-looping reforming reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] LaFeO3 is selected as the oxygen carrier material, and the reactor oxygen carrier 6 is made after high-temperature pressing and sintering. The oxygen carrier is cylindrical, with a diameter of 1000mm and a height of 2000mm. There are honeycomb channels 7 with a diameter of 3mm inside, and the channels are parallel to the main axis of the cylinder. The oxygen carrier is connected to the outer wall 5 of the reactor and is made of high-temperature-resistant stainless steel (904L). The outer wall of the reactor is heated by a furnace-type heating system. The gas storage area 3 at the bottom of the reactor and the gas collection area 9 at the top of the reactor have a diameter of 1000 mm and a height of 300 mm. The gas inlet 1 at the bottom of the reactor is controlled by a three-way solenoid valve.

[0026] During operation, turn on the external heating system of the reactor, control the reactor at 850°C-900°C, fuel (CH 4 ), air, and inert gas (N2) alternately enter the r...

Embodiment 2

[0028] Since the operation process and devices of each embodiment are the same, the specific implementation operation process is the same as that of Embodiment 1, and will not be repeated here, only the implementation conditions and implementation results are listed in the following table.

[0029]

Embodiment 3

[0031] Since the operation process and devices of each embodiment are the same, the specific implementation operation process is the same as that of Embodiment 1, and will not be repeated here, only the implementation conditions and implementation results are listed in the following table.

[0032]

[0033]

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Abstract

The invention discloses a cellular oxygen carrier chemical-looping reforming reactor. The cellular oxygen carrier chemical-looping reforming reactor comprises a reactor main body which comprises an outer wall and an outer heating barrel, wherein cellular oxygen carriers are formed in the outer wall and the outer heating barrel and are jointed with the outer wall and the inner wall of the outer heating barrel, and cellular pore paths parallel to the outer wall and a main shaft of the outer heating barrel are arranged in the cellular oxygen carrier and are pairwise spaced; and the tops of the outer wall and the outer heating barrel are connected with a top gas collecting region through upper flanges, the bottoms of the outer wall and the outer heating barrel are connected with a bottom gas storage region through lower flanges, a tail gas outlet is connected outside the top gas collecting region, a tee-junction gas inlet is connected outside the bottom gas storage region, and the bottom gas storage region is internally provided with a radiation type gas pre-distribution device connected with the tee-junction gas inlet. The cellular oxygen carriers have the advantages of having heat storage function, being capable of helping the reactor to maintain reaction temperature, alleviating the thermal load of external heating equipment and being beneficial to the stable proceeding of reaction.

Description

technical field [0001] The invention relates to the technical fields of fuel clean combustion, functional materials and environmental protection, in particular to a CH 4 A honeycomb oxygen carrier reactor for chemical chain reformation. Background technique [0002] Methane is the main component of natural gas, coalbed methane and natural gas hydrate. With the depletion of petroleum resources, relatively abundant methane resources will become one of the most promising alternative energy sources in the post-petroleum era. Exploration shows that my country's coalbed methane reserves are about 35 trillion m 3 , the prospective reserves of natural gas reached 43 trillion m 3 Therefore, it is of great strategic significance to research and develop economical and efficient methane conversion technology. An important way to convert methane into liquid fuels and chemicals is to first convert methane into synthesis gas (H 2 +CO), and then the synthesis gas is further converted int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/02
Inventor 何方魏国强黄振赵坤武宏香李海滨
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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