Research on the Suppression of Methane Explosion by ZSM-5 Zeolite With Different Si/Al Ratios

IF 1.6 4区工程技术 Q3 ENGINEERING, CHEMICAL

Asia-Pacific Journal of Chemical Engineering Pub Date : 2025-01-26 DOI:10.1002/apj.3188

Siqi Wang, Yongmei Hao, Zhengqi Wu, Fan Wu, Ning Xu

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Abstract

To investigate the impact of single zeolite powder on methane explosion inhibition, a ZSM-5 zeolite with a porous structure was utilized as the raw material and subjected to alkali treatment to obtain the zeolites' powers with varying Si/Al ratios. The modified powders were characterized and analyzed using SEM, XRD, EDS analysis, etc. and compared with unmodified zeolite powders regarding their explosion suppression effects. The results demonstrated that alkali-treated zeolite powders exhibited superior explosion suppression effects, with the optimum effect achieved at the Si/Al ratio of 10.32, reducing the maximum explosion pressure by 84.24% compared to unfilled conditions. In this study, the explosion suppression effect of the explosion suppression powders includes adsorption of gases, barrier effect, and reaction with free radicals in the explosion process. Desilication increased sodium content within the zeolites; however, this content decreased as the silicon-to-aluminum ratio increased due to its capability to capture free radicals generated during explosions and interrupt chain reactions.

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不同硅铝比ZSM-5分子筛抑制甲烷爆炸的研究

为了研究单一沸石粉对甲烷抑爆性能的影响，以具有多孔结构的ZSM-5沸石为原料，经碱处理，得到不同Si/Al比的沸石粉体。采用SEM、XRD、EDS等对改性后的沸石粉体进行了表征和分析，并与未改性的沸石粉体进行了抑爆效果的比较。结果表明，经碱处理的沸石粉具有较好的抑爆效果，在Si/Al比为10.32时达到最佳抑爆效果，最大爆炸压力比未填充条件降低84.24%。在本研究中，抑爆粉的抑爆效果主要包括对气体的吸附作用、屏障作用以及在爆炸过程中与自由基的反应。脱硅使沸石内钠含量增加；然而，随着硅铝比的增加，硅铝的含量减少，这是因为硅铝能够捕获爆炸和中断链式反应中产生的自由基。

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来源期刊

Asia-Pacific Journal of Chemical Engineering ENGINEERING, CHEMICAL-

自引率

11.10%

发文量

111

期刊介绍： Asia-Pacific Journal of Chemical Engineering is aimed at capturing current developments and initiatives in chemical engineering related and specialised areas. Publishing six issues each year, the journal showcases innovative technological developments, providing an opportunity for technology transfer and collaboration. Asia-Pacific Journal of Chemical Engineering will focus particular attention on the key areas of: Process Application (separation, polymer, catalysis, nanotechnology, electrochemistry, nuclear technology); Energy and Environmental Technology (materials for energy storage and conversion, coal gasification, gas liquefaction, air pollution control, water treatment, waste utilization and management, nuclear waste remediation); and Biochemical Engineering (including targeted drug delivery applications).