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2. Pyrolysis of high-ash sewage sludge in a circulating fluidized bed reactor for production of liquids rich in heterocyclic nitrogenated compounds

Author

Baosheng Jin, Rui Li, Wu Zuo, Yu Sun, Jia Jiqiang, and Yaji Huang

Subjects
Environmental Engineering, Hot Temperature, Gas velocity, Sewage, Renewable Energy, Sustainability and the Environment, Chemistry, Bioengineering, General Medicine, Raw material, Waste Disposal, Fluid, Gas Chromatography-Mass Spectrometry, Hydrocarbons, Chemical engineering, Heterocyclic Compounds, Spectroscopy, Fourier Transform Infrared, Organic chemistry, Sewage sludge treatment, Particle size, Fluidized bed combustion, Fourier transform infrared spectroscopy, Particle Size, Nitrogen Compounds, Waste Management and Disposal, Pyrolysis, Sludge
Abstract

A circulating fluidized bed reactor was used for pyrolyzing sewage sludge with a high ash content to produce liquids rich in heterocyclic nitrogenated compounds. GC/MS and FTIR analyses showed that heterocyclic nitrogenated compounds and hydrocarbons made up 38.5–61.21% and 2.24–17.48% of the pyrolysis liquids, respectively. A fluidized gas velocity of 1.13 m/s, a sludge feed rate of 10.78 kg/h and a particle size of 1–2 mm promoted heterocyclic nitrogenated compound production. Utilizing heterocyclic nitrogenated compounds as chemical feedstock could be a way for offsetting the cost of sewage sludge treatment.

Published
2012

3. Computer aided alignment of R-C optical system

Author

刘 波 Liu Bo, 丁亚林 Ding Yalin, 贾继强 Jia Jiqiang, 苏东风 Su Dongfeng, and 张 雷 Zhang Lei

Subjects
Space and Planetary Science, Aerospace Engineering, Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics
Published
2016
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