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Integrated power generation and carbon capture using fuel cells

A hydrogen and purity technology used in the field of generating high-purity hydrogen

Inactive Publication Date: 2015-12-30
CENT NAT DE LA RECHERCHE SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Half of this spawn was scrapped due to not attractively capping the slag price so far

Method used

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  • Integrated power generation and carbon capture using fuel cells
  • Integrated power generation and carbon capture using fuel cells
  • Integrated power generation and carbon capture using fuel cells

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Experimental program
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Embodiment

[0060] Preparation of crushed basic oxygen furnace slag (CBOF)

[0061] Basic oxygen furnace (BOF) steel slag was used as starting material. BOF steel slag is milled in a mortar (mortar) grinder ( RM100) for 10 minutes of crushing. Powders are obtained with particle sizes from below 10 nm to 50 μm, referred to herein as CBOF. Particle size was inferred from SEM observations.

[0062] Major and trace element compositions and iron speciation were determined by ICP-OES, X-ray diffraction, SEM and EXAFS ([1], [2], [3], [4]).

[0063] The main element composition of BOF slag is: CaO (44.7wt.%), FeO (20.58wt.%), Fe 2 o 3 (3.16wt.%), Fe(2.7wt.%), SiO 2 (7.6wt.%), MnO (2.86wt.%), MgO (4.9wt.%), Al 2 o 3 (1.2wt.%) and P 2 o 5 (1.61 wt.%).

[0064] Preparation of carbonized crushed basic oxygen furnace slag (CARBOF)

[0065] Steel slag and CO 2 Follow the process reaction described in [5].

[0066] 20 grams of crushed steel slag (CBOF) together with 1L of deionized wa...

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Abstract

Systems and methods are provided for capturing CO2 from a combustion source using molten carbonate fuel cells (MCFCs). At least a portion of the anode exhaust can be recycled for use as a fuel for the combustion source. Optionally, a second portion of the anode exhaust can be recycled for use as part of an anode input stream. This can allow for a reduction in the amount of fuel cell area required for separating CO2 from the combustion source exhaust and / or modifications in how the fuel cells can be operated.

Description

technical field [0001] The present invention relates to a method for generating high purity hydrogen below 500°C. More specifically, the present invention relates to a method for passing steel slag, especially wüstite and H contained in steel slag. 2 O is a method for generating high-purity hydrogen by reacting under hydrothermal conditions. Background technique [0002] Hydrogen fuel cells are a promising technology for use as a source of electricity. With only water as a by-product and no greenhouse gas emissions, hydrogen offers considerable environmental benefits. [0003] Hydrogen can be generated in several ways. The steam-iron process is one of the oldest known methods for generating hydrogen. The steam-swarf process is a cyclic process in which coal is gasified to contain H 2 and CO depleted reducing gas. The gas is then mixed with iron oxides (usually magnetite (Fe 3 o 4 )) to form reduced iron oxide forms, wurstite (FeO) and / or iron metal (Fe). The reduced...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/08C01B3/10
CPCC01B3/10Y02E60/36C01B3/08C01B3/061
Inventor F·布吕内B·马尔瓦森O·维达尔B·戈夫
Owner CENT NAT DE LA RECHERCHE SCI