A Microwave Thermostatic Reactor for Processing Liquid Materials Based on a Heat-Exchanger

Zhou, Yan; Zhang, Chun; Xie, Tian; Hong, Tao; Zhu, Huacheng; Yang, Yang; Liu, Changjun

doi:10.3390/ma10101160

Cited by 12 publications

(3 citation statements)

References 37 publications

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“…In many chemical plants, microwave thermostatic reactors have replaced existing power-adjustable thermostatic reactors. Yongqiang Zhou et al (Zhou et al 2017) proposed processing liquid materials using microwave thermostatic chemical reactors by controlling the coolant velocity. The paper suggested that the reaction vessel contains liquid for the sample and that the microwave coolant flows through a spiral heat exchanger to control the temperature.…”

Section: System Control With Pid Controllermentioning

confidence: 99%

Review on PID, fuzzy and hybrid fuzzy PID controllers for controlling non-linear dynamic behaviour of chemical plants

Mohindru

2024

Artif Intell Rev

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The chemical production process is tedious due to the integration of different types of equipment and variables. Designing the controller is crucial in the chemical industry due to the interactive and non-linear system behaviour. An intelligent autonomous controller can improve the operating efficiency of the industry. Although several controllers have been developed, different system failures are frequently reported. Hence, controllers such as proportional integral derivative (PID), fuzzy logic controller (FLC), and hybrid fuzzy PID (F-PID) applied in the chemical industries are critically reviewed in the paper. Initially, the PID controller-based approaches are reviewed for different purposes in the chemical industry. After that, the FLC-based controllers-based papers are reviewed. In order to satisfy the issues in both controllers, the H-PID controllers have been reviewed. This review paper will provide an effective solution for operation control in the chemical industry under different operating conditions.

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Section: System Control With Pid Controllermentioning

confidence: 99%

Review on PID, fuzzy and hybrid fuzzy PID controllers for controlling non-linear dynamic behaviour of chemical plants

Mohindru

2024

Artif Intell Rev

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“…As a result, using physical treatment techniques to properly upgrade these ores is generally difficult. Pyrometallurgical extraction techniques are used to extract nickel from laterite ores, which may yield significant nickel recoveries, to solve this challenge [9][10][11][12][13][14][15][16][17][18][19][20][21]. Furthermore, the laterite mineral will have a significant impact on the reducing roasting process.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Reductor Type in Thermal Upgrading of Limonite

Bahfie,

Manaf,

Astuti

et al. 2023

MSF

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Thermal upgrading is the process for nickel extraction in selective reduction with holding temperature in low (300-500 °C). The effect and type of reductor are the main factor during this process. With those factors, this research will be finding the variation of reductor type. The first step is limonite and reductor characterization. Ni, Fe, Mg, Al, and Si levels in limonite are 1.4 Ni, 50.5 Fe, 1.81 Al, 4.86 Mg, and 16.5 Si weight percent, respectively. The iron oxide/oxyhydroxide content of limonite is 94.4 percent and 5.6 percent silicate. For reductor, those are graphite, palm kernel shell, and anthracite with carbon percentage 98, 77, and 68 %. From XRF, the optimum nickel grade is in the graphite and anthracite with 6.5 and 7 wt%. For phases, the ferronickel is appearing in the high intensity for the optimum reductor type and the microstructure is around 5-10 um for both. Moreover, the optimum reductor type are graphite and anthracite. Keyword: reductor type, limonite, phase, microstructure, thermal upgrading.

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“…Li et al developed a temperature controlling microwave drying system based on a feedback controlling loop, and good stability was reported [17], [18]. In order to keep the heated material at a set temperature, Zhou et al proposed a microwave reactor integrated with a heat-exchanger [19]. However, in the above methods, the heated materials are all placed in the batch reactor.…”

Section: Introductionmentioning

confidence: 99%

A Temperature-Control System for Continuous-Flow Microwave Heating Using a Magnetron as Microwave Source

Zhang

Zhu

2020

IEEE Access

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A real-time temperature control system is designed for microwave heating of a continuousflow substance. In this system, a magnetron is used as the microwave source, and its output power can be continuously adjusted though circuit design. A programmable logic controller (PLC) is used to procedure the temperature and power data as well as lead the whole control decision. The sample temperature can be controlled by regulating the output power of the magnetron though the control signal from the PLC during the heating process. The complete system is finally assembled into a user-friendly device, where the users can operate and monitor the heating process conveniently though a touch screen. A temperature-dependent material (Phosphoric acid) is used in system tests. The results show that the designed system can successfully achieve the desired temperature with an acceptable accuracy and stability. INDEX TERMS Temperature control, continuous flow, microwave heating, magnetron.

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A Microwave Thermostatic Reactor for Processing Liquid Materials Based on a Heat-Exchanger

Cited by 12 publications

References 37 publications

Review on PID, fuzzy and hybrid fuzzy PID controllers for controlling non-linear dynamic behaviour of chemical plants

Review on PID, fuzzy and hybrid fuzzy PID controllers for controlling non-linear dynamic behaviour of chemical plants

The Effect of Reductor Type in Thermal Upgrading of Limonite

A Temperature-Control System for Continuous-Flow Microwave Heating Using a Magnetron as Microwave Source

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