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Hydrogen production method by multi-step copper-chlorine thermochemical cycle

一种热化学、氯化氢的技术，应用在化学仪器和方法、氢/合成气生产、氢的生产等方向

Active Publication Date: 2014-07-16
INST OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are some technical challenges associated with Cu-Cl cycling

Method used

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  • Hydrogen production method by multi-step copper-chlorine thermochemical cycle
  • Hydrogen production method by multi-step copper-chlorine thermochemical cycle
  • Hydrogen production method by multi-step copper-chlorine thermochemical cycle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0127] According to the above disclosure of the present invention, the following experiments were carried out in a quartz microreactor. The reaction was carried out as a fixed bed reactor type. The dry hydrogen chloride gas required for the reaction was supplied into the reactor through a mass flow controller through a quartz tube extending to the bottom of the reactor. The reaction is carried out under atmospheric pressure. Dry hydrogen chloride gas is introduced into the reactor at the desired flow rate. The results are shown in Table 1. The reaction is carried out under the following operating conditions:

[0128] Copper (Cu): 0.015 mol (1 gram)

[0129] Molar ratio of HCl / Cu: 5:1

[0130] Copper (Cu) size: 3-5μm

[0131] N 2 Flow rate: 15cm 3 / minute

[0132] Table 1

[0133] Example number

Embodiment 6-8

[0135] According to the above disclosure of the present invention, the following experiments were carried out in a quartz microreactor. The reaction was carried out as a fixed bed reactor type. The dry hydrogen chloride gas required for the reaction was supplied into the reactor through a mass flow controller through a quartz tube extending to the bottom of the reactor. The reaction is carried out under atmospheric pressure. Dry hydrogen chloride gas is introduced into the reactor at the desired flow rate. The results are shown in Table 2. The reaction is carried out under the following operating conditions:

[0136] Copper (Cu): 0.015 mol (1 gram)

[0137] Molar ratio of HCl / Cu: 1:1

[0138] Copper (Cu) size: 3-5μm

[0139] Temperature: 450°C

[0140] Table 2

[0141] Example number

Embodiment 9-11

[0143] According to the above disclosure of the present invention, the following experiments were carried out in a quartz microreactor. The reaction was carried out as a fixed bed reactor type. The dry hydrogen chloride gas required for the reaction was supplied into the reactor through a mass flow controller through a quartz tube extending to the bottom of the reactor. The reaction is carried out under atmospheric pressure. Dry hydrogen chloride gas is introduced into the reactor at the desired flow rate. The results are shown in Table 3. The reaction is carried out under the following operating conditions:

[0144] Copper (Cu): 0.015 mol (1 gram)

[0145] Copper (Cu) size: 3-5μm

[0146] Temperature: 450°C

[0147] N 2 Flow rate: 50cm 3 / minute

[0148] table 3

[0149] Example number

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Abstract

The present invention discloses a method for thermochemical production of hydrogen and oxygen from water by a low temperature, multi-step, closed, cyclic copper- chlorine (Cu-Cl) process involving the reactions of copper and chlorine compounds. A method for production of hydrogen via Cu-Cl thermochemical cycle consists of four thermal reactions and one electrochemical reaction and one unit operation. The cycle involves six steps: (1) hydrogen production step; (2) copper production step; (3) drying step; (4) hydrogen chloride production step; (5) decomposition step; (6) oxygen production step. The net reaction of the sequential process is the decomposition of water into hydrogen and oxygen.; The methods for production of copper oxide which comprises contacting copper chloride particles with superheated steam and production of oxygen comprises reaction of copper oxide with dry chlorine as a part of hydrogen production by thermochemical Copper-Chlorine (Cu-Cl) cycle. The reactions are performed in a flow through type quartz reactor as fixed bed type at high temperature and atmospheric pressure. All the reactions in Cu-Cl cycle are experimentally demonstrated for proof-of-concept work.

Description

technical field [0001] The present invention involves the production of hydrogen using, as a variation, a six-step thermochemical copper-chlorine (Cu-Cl) cycle. Water is decomposed into hydrogen and oxygen by a chemical reaction at high temperature, through copper and chlorine compounds to form a closed loop. The invention also relates to a system comprising experimental equipment for producing copper oxide and for producing oxygen by chlorination of copper oxide as part of a thermochemical copper-chlorine (Cu-Cl) cycle, wherein chlorine Copper oxide reacts with superheated steam to produce copper oxide, and chlorination of the formed copper oxide further produces oxygen. These reactions are carried out in fixed bed reactors at elevated temperature and atmospheric pressure. Background technique [0002] Today, the need for alternative energy sources is a central issue due to the depletion of conventional resources and global climate change due to the emission of greenhouse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/08C01G3/02
CPCC01B3/08C01G3/02Y02E60/36C01G3/05Y02P20/129C01B3/02C01B3/068C01B2203/0272C01B2203/143C01B2203/82
Inventor 加纳帕蒂·达达萨赫·亚达夫普拉卡什·桑托什劳·帕哈迪阿什维尼·巴加万·尼鲁柯达马拉尤·帕瓦塔卢阿尼尔·巴德瓦杰班特瓦·纳拉亚纳·帕布努日阿特·约曼·托马斯迪利普·马杜苏丹·卡莱
Owner INST OF CHEM TECH
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