A device for producing hydrogen by coupling biomass gasification with SOFC tail gas and using method thereof

Abstract

The invention discloses an SOFC tail gas coupling biomass gasification hydrogen production device and a use method thereof, which belong to the technical field of new energy utilization. The device includes structural units such as SOFC system, preheating chamber, premixing chamber, fluidization chamber, gas distribution chamber, outlet channel and separation box I. The device makes biomass firstly dry and volatilize in the waste heat of SOFC tail gas, and then Hydrogen is produced by steam gasification, and the gasified gas after the reaction is cooled and purified. The device comprehensively utilizes the hydrogen and waste heat in the SOFC tail gas to increase the hydrogen production rate of biomass gasification hydrogen production, reduce the energy consumption of biomass gasification hydrogen production, and has the characteristics of energy saving and environmental protection. At the same time, by adjusting the operating parameters of the device, such as material mass ratio, gas flow ratio, air flow rate, etc., the conversion rate of biomass gasification reaction is improved, the energy consumption of the device is reduced, and the production rate is increased. In general, this device uses the hydrogen and waste heat in the SOFC tail gas to increase the hydrogen production rate of biomass gasification hydrogen production and reduce the energy consumption of biomass gasification hydrogen production.

Description

technical field [0001] The invention belongs to the technical field of new energy utilization, and relates to a device for producing hydrogen by SOFC tail gas coupled with biomass gasification and a method for using the same. Background technique [0002] Solid oxide fuel cell (Solid Oxide Fuel Cell), as the third generation fuel cell, is a fuel cell device that can directly convert the chemical energy stored in fuel and oxidant into electrical energy in an efficient and environmentally friendly manner at medium and high temperatures. It is a new energy source with broad development prospects, but there are also some problems. For example, in the current technical application field, there is a lack of effective disposal of the tail gas produced by the action of SOFC fuel and oxidant. It is worth noting that the SOFC tail gas contains not only valuable hydrogen energy, but also medium and high temperature waste heat, which must be recovered by using reasonable devices and met...

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Problems solved by technology

[0004] In view of the technical problems existing in the above-mentioned technical field, the object of the present invention is to provide a SOFC tail gas coupling biomass gasification hydrogen production device and its use method to solve the low hydrogen production rate and energy efficiency of the existing biomass gasification hydrogen production. The problem of high consumption

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