نتایج جستجو برای: microwave assisted hydrothermal technique

تعداد نتایج: 787513  

Journal: :Carbon Capture Science & Technology 2021

Carbon dioxide and greenhouse gas emissions have been a known threat globally. One of the significant contributors to this issue is coal usage in power generation industry. Hydro-thermal carbonization (HTC) considered one alternative methods for producing hydrochar replace coal. Moreover, application microwave heating HTC process demand due its advantageous characteristics such as rapid selecti...

Journal: :international journal of advanced biological and biomedical research 2013
mehran moradalizadeh naghmeh samadi peyman rajaei

the genus haplophyllum, which belongs to the rutaceae family, includes 18 species in iran. in this study, after collecting plant material, botanical identification and suitable drying, the essential oils from aerial parts of haplophyllum robustum bge. were extracted by three different isolation techniques, conventional hydrodistillation (hd), microwave-assisted hydrodistillation (mahd) and solv...

2013
Ajay Shukla Ramchandra Gupta Prabhakar Sharma Alok Pal Jain

A calcium sennoside was extracted by developed microwave assisted extraction technique from Senna leaves. Microwave extraction was carried out at 250 W for 20 minutes, 350 W for 15 minutes and 450 W for 10 min heating period, these produced increase yields of calcium sennosides when compared to conventional heating. The yield of calcium sennosides obtained by microwave extraction was found to b...

Journal: :International Journal of Ceramic Engineering & Science 2019

2017
Ming-Jer Tsai Yen-Zen Wang Chia-Yun Chang Marinos Pitsikalis

The presence of N-phenyl-p-phenylenediamine (PPDA: a dimer of aniline) during microwave (MW) irradiation can significantly improve Pt-loading on the XC72 carbon matrix as a catalyst support of proton exchange membrane fuel cells (PEMFCs). PPDA is converted to an emeraldine base state during MW-assisted redox reaction, which is characterized by both FTIR and Raman spectra. The increased degree o...

2010
B. N. Shah A. K. Seth B. S. Nayak Biren N. Shah

Objective: A microwave assisted extraction technique was developed to optimize the extraction of mucilage from the fruits of Trichosenthes dioica plant. Materials and Methods: the plant has been extracted by conventional and microwave assisted methods for the isolation of mucilage. Results and Discussion: Microwave extraction at 320 W intensity and 20 min heating duration, 84.92% increase in th...

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