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Power system based on methane cracking and fuel battery

A fuel cell and energy system technology, applied in the field of energy systems, can solve problems such as the complexity of the reaction process, and achieve the effects of simple and easy process, broad market prospects, and high-efficiency utilization

Inactive Publication Date: 2007-04-04
TIANJIN UNIV
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Problems solved by technology

However, these reaction processes are relatively complicated and accompanied by the generation of CO, which must be oxidized to CO by steam reforming in subsequent steps. 2

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  • Power system based on methane cracking and fuel battery

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Embodiment Construction

[0020] Methane preheating is carried out in two stages. The first stage heats fresh methane from normal temperature (25°C) and normal pressure (1atm) to 100°C through the preheater 1′, and the second stage heats the fresh methane from the preheater 1′ Methane is heated from 100°C to 600°C through preheater 1. Enter the fluidized catalytic cracking reactor, catalytic cracking at 600 ° C into nano-carbon fibers and hydrogen. The high-purity hydrogen recovers heat through the waste heat boiler, cools down to 100°C, and passes into the proton membrane fuel cell. At the same time, the oxidant air is heated to 100°C through the preheater 3, and then passes into the proton membrane fuel cell. It reacts with hydrogen to generate water at 100°C, which can be used as a living Sold with water. High-temperature nano-carbon fiber (600°C) is directly passed into the carbon fuel cell, and oxygen and nitrogen are heated from normal temperature to 650°C through the preheater 2, and then passe...

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Abstract

The invention is concerned with an energy sources system based on methane pyrolysis and fuel cells, relates to methane catalyzing and pyrolysis device, carbon cells and proton film cells. To keep steady flow operation, carry the methane catalyzing and pyrolysis inside the flowing bed with activator Ni at 500-750DEG C and get70%-80% transform efficiency. Use PEMFC to consume the hydrogen produced from methane pyrolysis, and the electricity efficiency is 0.4-0.65 at 25-100DEG C with well-rounded technology and great application. The carbon fuel cell's electrolyte is molten carbonate and it is used to consume carbon produced from methane pyrolysis, and the efficiency is 0.82 at 550DEG C. This technology owns high integration degree to separate hydrogen and carbon. The carbon cells greatly use all shapes of carbon resource with easy operation.

Description

technical field [0001] The invention relates to an energy system, in particular to an energy system based on methane cracking and fuel cells. Background technique [0002] The utilization of methane in industry is mainly realized through steam reforming reaction. The partial oxidation and autothermal reforming reactions of methane have also received increasing attention recently. However, these reaction processes are relatively complicated and accompanied by the generation of CO, which must be oxidized to CO by steam reforming in subsequent steps. 2 . Contents of the invention [0003] In order to solve the above technical problems, the present invention uses natural gas as a raw material and combines fuel cell technology to obtain a high-efficiency energy process route with an output power efficiency of 69%. [0004] The object of the present invention is to provide an energy system. [0005] The energy system of the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/06C01B3/30C01B3/26H01M8/10H01M8/14H01M8/00H01M8/0612H01M8/1007
CPCY02E60/521Y02E60/526Y02E60/50
Inventor 李永丹章睿
Owner TIANJIN UNIV
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