Device and method for preparing hydrogen through temperature controlled continuous decomposition of hydrogen sulfide

A hydrogen sulfide, warm-type technology, applied in the production of hydrogen and other directions, can solve the problems of unstable discharge, no mention of H2 energy efficiency and stability problems, and reduced decomposition rate, so as to reduce energy loss, facilitate industrialization, The effect of improving uniformity

Inactive Publication Date: 2013-07-17
BINZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The sulfur produced by decomposition adheres to the catalyst and the inside of the reactor, causing the catalyst to be deactivated and the capacitance of the system to change. The discharge is very unstable. With the prolongation of the discharge time, the H 2 The decomposition rate of S gradually decreased
[0015] Master's thesis "Plasma Cooperative ZnS Decomposition of H 2 Hydrogen production from S", 2012. Reported that plasma cooperates with ZnS to decompose H 2 Hydrogen production by S, decomposition rate is reported, H is not mentioned 2 Energy Efficiency and Stability of S Decomposition

Method used

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  • Device and method for preparing hydrogen through temperature controlled continuous decomposition of hydrogen sulfide
  • Device and method for preparing hydrogen through temperature controlled continuous decomposition of hydrogen sulfide

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Embodiment 1

[0028] A device for producing hydrogen by continuous decomposition of temperature-controlled hydrogen sulfide, such as figure 1 As shown, it is a temperature-controllable plasma generator belonging to dielectric barrier discharge. Its shell is a coaxial sleeve structure made of insulating material. The upper part of the outer cylinder (5) and the inner cylinder (6) and The lower part is sealed to form a jacket (7). In the jacket (7) is a circulating liquid used as a temperature-controlling and grounding electrode. The top of the inner cylinder (6) is sealed with an insulating head. The center electrode (1) is inserted into the inner cylinder (6), and the part protruding from the insulating material is connected to the high-voltage end of the AC step-up transformer, and a metal electrode is fixed at the lower part of the ring gap between the outer cylinder (5) and the inner cylinder (6). One end of the current lead-out wire goes deep into the jacket (7) to contact the liquid gr...

Embodiment 2

[0035] A device for producing hydrogen by continuous decomposition of temperature-controlled hydrogen sulfide, such as figure 2 As shown, it is a temperature-controllable plasma generator belonging to dielectric barrier discharge. Its shell is a coaxial sleeve structure made of insulating material. The upper part of the outer cylinder (5) and the inner cylinder (6) and The bottom is sealed to form a jacket (7). In the jacket (7) is a circulating liquid grounding electrode for temperature control and grounding. The top of the inner cylinder (6) is sealed with an insulating head. The center electrode (1) is inserted into the inner cylinder (6) from the center, and the part protruding from the insulating material is connected to the high-voltage end of the AC step-up transformer, and a A metal current lead-out wire, one end of which goes deep into the jacket (7) and contacts the liquid grounding electrode, and the other end extends out of the outer cylinder (5) to connect with t...

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Abstract

The invention discloses a device and a method for preparing hydrogen through temperature controlled continuous decomposition of hydrogen sulfide, belongs to the technical field of hydrogen preparation and gas purification, and relates to a dielectric barrier discharge temperature controllable plasma generating device and a method for preparing hydrogen through continuous and stable ionizing decomposition of a hydrogen sulfide gas or a gas containing hydrogen sulfide by using the device. The device is characterized in that a reactor has a coaxial sleeve type structure, a cylinder of the reactor is made of an insulating medium, a central electrode is formed by a metal, a grounding electrode is formed by a temperature controllable circulating liquid, and decomposed sulfur is separated through temperature control, so that continuous and stable operation of preparing the hydrogen through the decomposition of the hydrogen sulfide is ensured. The invention has the advantages that the method is suitable for preparing the hydrogen and elemental sulfur by dissociating the gases containing the hydrogen sulfide in chemical industries of natural gas, petroleum and coal; and the method does not have special requirement or limitation for the source and the composition of the gases, so the method has universal applicability for preparing the hydrogen and the elemental sulfur through the decomposition of the hydrogen sulfide.

Description

technical field [0001] The invention belongs to the technical field of hydrogen production and gas purification, and relates to a device and method for decomposing hydrogen sulfide into hydrogen and elemental sulfur by dielectric barrier discharge. technical background [0002] h 2 S is widely present in the waste gas of oil and gas exploitation, petrochemical industry, coal chemical industry and other industries. 2 S for pollution-free treatment. At present, the Claus method is mainly used to partially oxidize it into elemental sulfur and water, but the Claus method only recovers H 2 Sulfur and hydrogen in S generate water during the oxidation process, resulting in a waste of hydrogen resources. [0003] Among the common non-metallic hydrides (water, methanol and hydrogen sulfide), hydrogen sulfide has the lowest dissociation energy, so theoretically speaking, hydrogen sulfide thermal decomposition is the easiest to produce hydrogen. However, the hydrogen sulfide decomp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/04
CPCY02E60/364Y02E60/36
Inventor 苟建霞解胜利
Owner BINZHOU UNIV
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