基于陶瓷膜的高度集成反应器，用于强化生物质气化以产生清洁合成气

IF 3.5 3区工程技术 Q2 ENGINEERING, CHEMICAL

AIChE Journal Pub Date : 2024-11-26 DOI:10.1002/aic.18647

Wei Wei, Qiaoqiao Zhou, Ajing Ding, Shuncheng Li, Feng Zeng, Xuerui Wang, Chong Tian, Zhaoxiang Zhong, Huanhao Chen, Xuehong Gu

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引用次数: 0

摘要

生物质气化生产合成气是生物质利用过程中的一个关键操作单元。然而，由于存在复杂的杂质，包括颗粒物质（PMs）和焦油，其整体效率和稳定性往往受到限制。本研究开发了一种高度集成的基于陶瓷膜的反应器，用于高温合成气净化，从而能够高效地就地去除生物质气化产生的生物蒸汽中的可吸入颗粒物和焦油。具体来说，碳化硅（SiC）膜可将可吸入颗粒物从生物质挥发物中就地分离出来，而结构化 Ni15La5/S1-SiC 催化剂（在碳化硅泡沫上支撑的含镍和镧的硅铝沸石-1）可促进焦油的催化重整。与其他对照反应器（即仅含有膜或催化剂的反应器）相比，集成反应器在利用生物质气化生产清洁合成气方面显示出协同增效作用，PM 和焦油去除率分别高达约 97% 和约 90%，并在 800°C 的五次循环评估中表现出卓越的稳定性。

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A highly integrated ceramic membrane-based reactor for intensifying the biomass gasification to clean syngas

Biomass gasification for syngas production is a key operating unit in the biomass utilization process. However, its overall efficiency and stability are often restricted by the presence of complex impurities, including particulate matters (PMs) and tars. In this study, a highly integrated ceramic membrane-based reactor was developed for high-temperature syngas cleaning, enabling the efficient in situ removal of PMs and tars from bio-vapors produced by biomass gasification. Specifically, a silicon carbide (SiC) membrane could separate PMs from biomass volatiles in situ, while a structured Ni₁₅La₅/S1-SiC catalyst (nickel and lanthanum-laden silicalite-1 zeolite supported on SiC foam) facilitated the catalytic reforming of tars. Compared to other control reactors (i.e., those containing either a membrane or catalyst alone), the integrated reactor showed synergistic intensification in producing clean syngas from biomass gasification, achieving PM and tar removal efficiencies of up to ~97% and ~90%, and exhibited excellent stability in five-cycle evaluations at 800°C.

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来源期刊

AIChE Journal 工程技术-工程：化工

CiteScore

7.10

自引率

10.80%

发文量

411

审稿时长

3.6 months

期刊介绍： The AIChE Journal is the premier research monthly in chemical engineering and related fields. This peer-reviewed and broad-based journal reports on the most important and latest technological advances in core areas of chemical engineering as well as in other relevant engineering disciplines. To keep abreast with the progressive outlook of the profession, the Journal has been expanding the scope of its editorial contents to include such fast developing areas as biotechnology, electrochemical engineering, and environmental engineering. The AIChE Journal is indeed the global communications vehicle for the world-renowned researchers to exchange top-notch research findings with one another. Subscribing to the AIChE Journal is like having immediate access to nine topical journals in the field. Articles are categorized according to the following topical areas: Biomolecular Engineering, Bioengineering, Biochemicals, Biofuels, and Food Inorganic Materials: Synthesis and Processing Particle Technology and Fluidization Process Systems Engineering Reaction Engineering, Kinetics and Catalysis Separations: Materials, Devices and Processes Soft Materials: Synthesis, Processing and Products Thermodynamics and Molecular-Scale Phenomena Transport Phenomena and Fluid Mechanics.