非绝热环境下的高速连续流量热法

IF 3.5 3区工程技术 Q2 ENGINEERING, CHEMICAL

AIChE Journal Pub Date : 2024-12-23 DOI:10.1002/aic.18712

Yiming Xu, Fujun Li, Yun Zou, Jinzhe Cao, Shengyang Tao

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引用次数: 0

摘要

出于安全考虑，许多快速而强烈的放热反应已过渡到连续流反应器。然而，由于传递特性的巨大差异，来自批量量热计的数据通常无法指导这些过程，并且量热计的绝热组件显着增加了设备成本和尺寸。受人体体温调节机制的启发，我们开发了动态跟踪参考连续量热计（DTRCC）。这种新颖的装置可以在非绝热条件下和可变外部温度下的连续流反应中进行快速和精确的量热测定。测量时间可缩短至110 s，误差低至0.5%。DTRCC在各种反应类型中被证明是通用的，包括硝化和光反应。还可以根据量热法测定溶液的热容和反应的选择性。实施DTRCC提供了重要的数据，加强了连续流反应器的设计和优化，显著提高了化工过程的安全性和效率。

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High‐speed continuous flow calorimetry in a nonadiabatic environment

Many rapid and strongly exothermic reactions have transitioned to continuous flow reactors for safety considerations. However, data from batch calorimeters often fall short in guiding these processes due to substantial differences in transfer characteristics, and the adiabatic components of calorimeters significantly escalate equipment costs and dimensions. Inspired by the human body's thermoregulatory mechanism, we developed the Dynamic Tracking Reference Continuous Calorimeter (DTRCC). This novel device enables rapid and precise calorimetry in continuous‐flow reactions under nonadiabatic conditions and variable external temperatures. The measurement time can be reduced to 110 s with a low difference of 0.5%. The DTRCC proves versatile across various reaction types, including nitrification and photoreaction. It can also determine solutions' heat capacity and reactions' selectivity according to calorimetry. Implementing the DTRCC provides crucial data that enhance the design and optimization of continuous flow reactors, significantly boosting chemical process safety and efficiency.

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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.