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

Purification membrane for water-hydrogen generator and preparation method and use thereof

A generator and purification membrane technology, applied in chemical instruments and methods, inorganic chemistry, hydrogen and other directions, can solve the problems of low hydrogen purity, affect the service life of fuel cells, and cannot be used in industrial environments, and achieve the effect of improving durability

Active Publication Date: 2019-05-17
德州新动能铁塔发电有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the method of purifying hydrogen mainly adopts inorganic palladium membrane or its alloy membrane, but the research of this kind of membrane is still mainly in the laboratory stage, because the laboratory conditions are different from the industrial application conditions, these traditional palladium membranes or palladium alloy membranes cannot be applied to The industrial environment, especially the conditions of water hydrogen generators, or the purity of hydrogen produced therefrom is not high, which affects the service life of 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
  • Purification membrane for water-hydrogen generator and preparation method and use thereof
  • Purification membrane for water-hydrogen generator and preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] A second aspect of the present invention provides the preparation method of the purification membrane of the present invention, which at least includes the step of coating a palladium film layer on a stainless steel foam layer, or plating an intermediate layer on a stainless steel foam layer, and then plating a palladium film layer A step of. The preparation method of the present invention will be described in detail below.

[0046] The plating method of the present invention is applicable to the situation of directly plating a palladium film layer on the stainless steel foam layer, plating an intermediate layer on the stainless steel foam layer and plating a palladium film layer on the intermediate layer.

[0047] Examples of the plating method of the present invention include high velocity oxyfuel combustion thermal spraying (HVOF), chemical vapor deposition, physical vapor deposition, vacuum-assisted electroless plating, magnetron sputtering, and the like. An exempl...

Embodiment

[0057] 1. Preparation of stainless steel foam layer

[0058] Use 316L stainless steel powder (which contains less than 0.030% of carbon, less than 1.00% of silicon, less than 2.00% of manganese, less than 0.035% of phosphorus, less than 0.030% of sulfur, and 16.00-18.00% of chromium based on the total weight), in addition Nickel, molybdenum and copper powders sufficient to achieve the contents shown in Table 1 were added as raw materials for the preparation of stainless steel foams.

[0059] Add 5% polyvinyl alcohol aqueous solution as a forming agent to the above raw materials, mix them uniformly and dry them, and use powder metallurgy molding method to press under different pressures to obtain disc-shaped compacts with a size of d32mm×2mm, and then place the compacts Put it into a hydrogen furnace for sintering, and the dew point of hydrogen in the sintering atmosphere is about -50°C. The sintering temperature is 950°C, the holding time is 1h, and the pressing pressure is 2...

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

PropertyMeasurementUnit
pore sizeaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a water-hydrogen power generator purification membrane as well as a preparation method and application thereof. The purification membrane comprises a stainless steel foamed layer and a palladium membrane layer of specific components, and optionally further comprises a middle layer. The purification membrane disclosed by the invention can be applied to purification of hydrogen obtained through methanol water reforming hydrogen production at 100-400 DEG C.

Description

technical field [0001] The invention relates to the field of water-hydrogen generators, and in particular the invention relates to a purification membrane for water-hydrogen generators and a preparation method and use thereof. Background technique [0002] The water-hydrogen generator uses methanol water as fuel to reform and convert it into hydrogen, and then feeds it into a fuel cell for electrochemical reaction, directly converting chemical energy into electrical energy, with higher energy conversion efficiency, and only discharges water and a small amount of carbon dioxide, realizing a real Environmental friendly. It effectively solves the problem of "difficult storage and transportation and high cost" of hydrogen energy. Compared with traditional gasoline / diesel generators, it has the advantages of high efficiency, stable and continuous power generation, no pollution, green environmental protection, zero noise pollution, maintenance-free, and low operating costs. Ther...

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 Patents(China)
IPC IPC(8): C01B3/40C22C38/02C22C38/04C22C38/44C22C38/42C22C38/58
CPCC01B3/40C01B2203/0227C01B2203/066C01B2203/1241C22C38/002C22C38/02C22C38/04C22C38/42C22C38/44C22C38/58
Inventor 戚玉欣董祥国党志东
Owner 德州新动能铁塔发电有限公司