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

Application of magnesium hydride hydrogen production assistants, magnesium hydride hydrogen production mixed reagent and method for preparing hydrogen from magnesium hydride

A hydrogen additive, magnesium hydride technology, applied in the direction of hydrogen production, etc., can solve the problems of reducing the application efficiency of magnesium hydride hydrogen production fuel cells, poor reaction kinetics and thermodynamic performance, damage to the continuity of hydrolysis reaction, etc., and achieve start-up time Short, inexpensive, and easily mass-producible effects

Pending Publication Date: 2019-05-31
武汉市能智达科技有限公司
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In the practical application of magnesium hydride, there are problems such as poor reaction kinetics and thermodynamic properties, slow hydrogen desorption rate; wherein the by-product Mg(OH) in the hydrolysis reaction process of magnesium hydride 2 It is difficult to dissolve in water, and it is easy to cover unreacted magnesium hydride particles, which seriously damages the continuity of the hydrolysis reaction, resulting in low reaction rate and conversion rate
[0012] Patent US7951349B2 introduces a fuel cell that utilizes water vapor-hydride reaction to produce hydrogen to generate electricity. However, this method generates water vapor through electric heating to maintain long-term and high-conversion hydrogen desorption of hydride, thus requiring a large amount of Electric energy maintains the reaction, which undoubtedly greatly reduces the application efficiency of magnesium hydride hydrogen production fuel cells

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
  • Application of magnesium hydride hydrogen production assistants, magnesium hydride hydrogen production mixed reagent and method for preparing hydrogen from magnesium hydride
  • Application of magnesium hydride hydrogen production assistants, magnesium hydride hydrogen production mixed reagent and method for preparing hydrogen from magnesium hydride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] 1). In a glove box protected by nitrogen, mix magnesium hydride:X powder=1:0.15 according to the mass ratio, and then mechanically stir and mix uniformly to prepare reaction powder A.

[0056] 2) Put the reaction powder A in the reaction vessel, and wait for the liquid water to pass into the liquid water in the reaction powder A to start the hydrogen production reaction.

[0057] 3) The composition of X powder is AlCl 3 .

[0058] After the hydrogen production reaction starts, hydrogen can be collected within 1 min. After the reaction is completed, calculations after hydrogen collection show that the hydrogen production efficiency is above 90%.

[0059] figure 1 The hydrogen release curve of the magnesium hydride quick start experiment prepared in this example, combined figure 1 Taking into account the system error caused by pipeline delay, hydrogen can be collected in a large amount and stably in about 1 minute after the start of pumping water, and the reaction is rapid.

[0060...

Embodiment 2

[0062] 1) In a glove box protected by nitrogen, mix magnesium hydride:X powder=1:0.2 according to the mass ratio, and then mechanically stir and mix uniformly to prepare reaction powder A.

[0063] 2) Put the reaction powder A in the reaction vessel, and start the hydrogen production reaction after the reaction powder A contacts the water vapor.

[0064] 3) The composition of X powder is CaCl 2 .

[0065] After the hydrogen production reaction starts, hydrogen can be collected within 2 minutes. After the reaction is completed, calculations after hydrogen collection show that the hydrogen production efficiency is above 88%.

Embodiment 3

[0067] 1) In a glove box protected by nitrogen, mix magnesium hydride:X powder=1:0.3 according to the mass ratio, and then mechanically stir and mix uniformly to prepare reaction powder A.

[0068] 2) Put the reaction powder A in the reaction vessel, and start the hydrogen production reaction after the reaction powder A contacts the liquid water.

[0069] 3) The composition of X powder is CuSO 4 .

[0070] After the hydrogen production reaction starts, hydrogen can be collected within 1 min. After the reaction is completed, calculations after hydrogen collection show that the hydrogen production efficiency is above 90%.

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 belongs to the technical field of magnesium hydride hydrogen production, and particularly relates to application of magnesium hydride hydrogen production assistants, a magnesium hydridehydrogen production mixed reagent and a method for preparing hydrogen from magnesium hydride. According to the application of the magnesium hydride hydrogen production assistants, the magnesium hydride hydrogen production mixed reagent and the method for preparing the hydrogen from the magnesium hydride, one or the mixture of more of the magnesium hydride hydrogen production assistants is taken asan assistant for preparing the hydrogen from the magnesium hydride, wherein the magnesium hydride hydrogen production assistants are matter of which the dissolution enthalpy is less than zero; further, the magnesium hydride hydrogen production assistants are salt of which the dissolution enthalpy is less than zero, or the magnesium hydride hydrogen production assistants are alkali metal hydroxides of which the dissolution enthalpy is less than zero; 0-20 parts by weight of the assistant for preparing the hydrogen from the magnesium hydride and MgH2 form the magnesium hydride hydrogen production mixed reagent. The method has the advantages that the technological process is simple, the cost is low, the starting time is short, the hydrogen preparation efficiency is high, environmental protection and no pollution are achieved, and the batch production is easy.

Description

Technical field [0001] The invention belongs to the technical field of hydrogen production from magnesium hydride, and specifically relates to an application of a hydrogen production auxiliary agent of magnesium hydride, a mixed reagent for hydrogen production from magnesium hydride, and a hydrogen production method from magnesium hydride. Background technique [0002] With the rapid development of fuel cells in the field of vehicles and portable power supplies, the hydrogen source as the best fuel for fuel cells has received more and more attention and vigorous research and development. Among them, the hydrogen production technology based on the hydrolysis of active metals and their hydrides has attracted domestic attention in recent years. Wide attention from foreign colleagues. [0003] Among the many hydrogen production and storage materials, MgH 2 It has the advantages of high hydrogen storage density, abundant resources, mature regeneration process, etc. It is regarded as a p...

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): C01B3/06
CPCY02E60/36
Inventor 胡燕汪雯婕谷杰人
Owner 武汉市能智达科技有限公司
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com