Biomass pyrolysis gasification multifunctional iron-based catalyst and preparation method thereof
An iron-based catalyst, pyrolysis and gasification technology, applied in the direction of physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve the problem of catalyst absorption adjustment not mentioned, Active metal deactivation, low tar cracking rate and other problems, to achieve good storage / release of oxygen capacity, enhanced interaction, and improve the effect of anti-carbon deposition
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0019] A method for preparing a biomass pyrolysis gasification multifunctional iron-based catalyst, comprising the steps of:
[0020] ①Carrier pretreatment: put 26g CaO in the muffle furnace, at 800 oC was calcined for 4h, and then ground and sieved to prepare 100-mesh CaO carrier particles.
[0021] ②Introduction of main active components: pretreated 26g, 100 mesh CaO carrier particles and 15.2mL 0.5g / mL Fe(NO 3 ) 3 9H 2 O solution mixed at 80 o Stir and impregnate at C for 2h, after the impregnation is completed, at 120 o C dried for 10h, the resulting sample was placed in a muffle furnace at 900 o C calcined for 3h, the calcined sample was placed in a desiccator to cool to room temperature, and then ground.
[0022] ③Introduction of co-active components: the steps The prepared sample was first mixed with 20.2mL 0.5g / mL Ce(NO 3 ) 3 ·6H 2 O solution was mixed and stirred at 60 o Immerse at C for 12h, at 200 o C dried for 20h, and then the resulting sample was pla...
Embodiment 2
[0028] The preparation method of the catalyst in this example is the same as that of Example 1, and the difference is that the active component content is different. The prepared catalyst consists of iron oxide: 5%, cerium oxide: 8%, zirconium oxide: 7% %, calcium oxide: 80%.
[0029] Catalyst evaluation was carried out under the same experimental conditions as in Example 1, and it was found that the gas component obtained after the reaction was (volume content): H 2 : 53.8%, CO: 26.9%, CO 2 : 7.2%, CH 4 : 12.1%, tar content is 0.06g / m 3 , the conversion rate of tar is 92.5%, H 2 When the / CO ratio is 2.0, the catalyst has stable reaction activity, no sintering, and no obvious carbon on the surface.
Embodiment 3
[0031] The preparation method of the catalyst in this embodiment is the same as that of Example 1 and will not be described again. The difference is that the active component content is different. The prepared catalyst consists of iron oxide: 20%, cerium oxide: 10%, zirconia: 10% %, calcium oxide: 60%.
[0032] Catalyst evaluation was carried out under the same experimental conditions as in Example 1, and it was found that the gas component obtained after the reaction was (volume content): H 2 : 49.9%, CO: 27.7%, CO 2 : 6.9%, CH 4 : 15.5%, tar content is 0.09g / m 3 , the tar conversion rate is only 88.7%, and the H 2 When the / CO ratio is 1.8, the reactivity of the catalyst tends to decrease with the increase of the reaction time, but the carbon deposition phenomenon is not obvious during sintering.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com