Unlock instant, AI-driven research and patent intelligence for your innovation.

Solid hydroboron hydrogen production method and device thereof

A borohydride and hydrogen production device technology, applied in the field of hydrogen production, can solve the problems of unstable hydrogen production process and inability to flexibly adjust the hydrogen release rate

Active Publication Date: 2010-01-27
HANERGY TECH
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this patent is that the alkali mixed in is quantitative, so the hydrogen release rate cannot be flexibly adjusted during the reaction process, making the hydrogen production process unstable

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
  • Solid hydroboron hydrogen production method and device thereof
  • Solid hydroboron hydrogen production method and device thereof
  • Solid hydroboron hydrogen production method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1As shown, 20g of borohydride solid 9, i.e. sodium borohydride, is placed in the housing 1, and 59% citric acid solution and 35wt% sodium hydroxide solution are respectively housed in the two elastic capsules 3 and 4. The solution and the sodium hydroxide solution flow out from the liquid outlets 5 and 6 and flow into the housing 1 through the conduits 7 and 8 under the contraction force of the elastic capsules 3 and 4, and react with the solid sodium borohydride 9 to generate hydrogen gas. The generated hydrogen flows out from the gas outlet 2 provided on the top of the housing 1 .

[0040] The flow rate of the citric acid solution was maintained at approximately 1.97 g / min; the flow rate of the sodium hydroxide solution was maintained at approximately 0.85 g / min. The flow rate of generating hydrogen can be kept at about 1.2L / min stably.

Embodiment 2

[0042] Such as figure 2 As shown, 20g of borohydride solid 9, namely potassium borohydride, is placed in the housing 1, 17wt% tartaric acid solution and 5wt% potassium hydroxide solution, tartaric acid solution and Potassium hydroxide solution flows out from the liquid outlets 5 and 6 under the action of the elastic capsules 3 and 4's own contraction force, and flows into the housing 1 at a set flow rate through the pumps 10 and 11 provided on the conduits 7 and 8. Nozzles 12 and 13 are provided at the outlets of the conduits 7 and 8, so that the tartaric acid solution and the potassium hydroxide solution are more evenly contacted with the solid potassium borohydride 9 and react to generate hydrogen gas, which is provided from the gas outlet 2 provided on the top of the housing 1 outflow.

[0043] The flow rate of the tartaric acid solution was 1.65 g / min; the flow rate of the potassium hydroxide solution was 2.72 g / min. The flow rate of hydrogen gas can be stabilized at ab...

Embodiment 3

[0045] Add 30wt% malic acid and 25wt% potassium hydroxide to 20g sodium borohydride solid. Ferric chloride and cobalt chloride additives are added to the malic acid solution, wherein the ratio of the amount of substances between malic acid and the additives ferric chloride and cobalt chloride is 500:1; the ratio of the amount of substances between cobalt ions and iron ions It is 25:1. Add sodium chloride to potassium hydroxide solution, and its mass fraction is 2.0%. The flow rate of malic acid was 1.6 g / min; the flow rate of potassium hydroxide solution was 2.25 g / min. The flow rate of hydrogen gas can be stabilized at about 1.4L / min. During the reaction process, a small amount of foam is produced, and the foam will not continue to increase as the reaction proceeds. The hydrogen production process is very stable, and the hydrogen speed is stable. When the reaction stops, the generation of hydrogen ends immediately, and the foam disappears.

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 discloses a solid hydroboron hydrogen production method and a device thereof; in the hydrogen production method, an acidic solution and a stabilizer solution are added into the solid hydroboron and react to produce hydrogen; the hydrogen production device comprises a shell (1) and a gas outlet (2) arranged at the top of the shell (1) and is characterized by further comprising two elastic capsules (3, 4) arranged in the shell (1); and the elastic capsules are respectively provided with liquid outlets (5, 6) which are communicated with the interior of the shell (1) by pipelines (7, 8). The invention has the advantages of high hydrogen storage rate and capability of flexibly adjusting the release speed of hydrogen, belonging to the filed of hydrogen production.

Description

technical field [0001] The invention relates to a method for producing hydrogen, in particular to a method for producing hydrogen from solid borohydride. The invention also relates to a hydrogen production device of the hydrogen production method. Background technique [0002] Sodium borohydride is a commonly used complex hydride, which is usually preserved as a solid or dissolved in an alkaline solution. Sodium borohydride was first synthesized by Schlesinger et al. in 1942. Due to its excellent reducibility and wide range of uses, it has been widely used in industrial production in European and American markets, but its use in my country is still very small. expand space. [0003] US patent (US 6 358 488) reports a method for generating hydrogen by catalyzing the hydrolysis of sodium borohydride by using nickel, cobalt or hydrogen storage alloy powder. The reaction equation is as follows: [0004] NaBH 4 +2H 2 O→4H 2 +NaBO 2 [0005] This hydrogen supply method has...

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 肖钢刘玉章王玉晓
Owner HANERGY TECH