A rotary combination valve and method for fixed-bed chemical chain hydrogen production

A combined valve and fixed bed technology, applied in chemical instruments and methods, hydrogen separation using solid contact, inorganic chemistry, etc., to achieve good safety, avoid contact, and simple equipment control
CN108869796BActive Publication Date: 2019-12-17UNIV OF SHANGHAI FOR SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF SHANGHAI FOR SCI & TECH
Publication Date
2019-12-17

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Abstract

The invention discloses a rotating combination valve and method for fixed bed chemical-looping hydrogen production and relates to the technical field of biomass pyrolysis gas chemical-looping hydrogenproduction. The rotating combination valve comprises a valve bottom connector, a rotating valve element, a valve cover and an external rotating control mechanism. The rotating combination valve is generally assembled on a set of fixed bed chemical-looping hydrogen production device. The rotating control mechanism controls the valve element to rotate, and thus channel interfaces are switched; thedevice works continuously and circularly, the device is more compact, the risk of welding and pipeline connecting leakage is reduced, and meanwhile, the device is easier to control and good in safety;and the compatible rotating valve element design is adopted, so that multi-step rotating and positioning according to the preset time and the preset angle can be achieved through a stepping motor control method, the valve element can also be controlled to rotate at the constant speed through an air-driven motor, and the two control methods are both suitable for the combination valve.
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Description

technical field

[0001] The invention relates to the technical field of biomass pyrolysis gas chemical chain hydrogen production, in particular to a rotary combined valve and method for fixed bed chemical chain hydrogen production. Background technique

[0002] The energy crisis has always been concerned by people, and hydrogen energy has been increasingly valued as an effective solution. Hydrogen is an ideal clean and environmentally friendly secondary energy source with a wide range of uses. It can be prepared from primary energy as a raw material. For example, hydrogen production from fossil fuels is currently a common hydrogen production method. However, the unsustainability of fossil fuels and the serious pollution of the environment during the processing process make hydrogen production using renewable and environmentally friendly biomass as a raw material a hot research and development topic. At present, there are many biomass utilization technologies, most of which s...

Claims

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