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In order to monitor the agglomeration in gas-solid fluidized bed, the voiceprint characteristics should be accurately extracted. Acoustic signals created by the polymer impact on the inner bed wall of the fluidized bed reactor were monitored with pasting piezoelectric ceramic sensors on the outside wall of fluidized bed reactor, transmitting the charge with long shielded cables and audio sampling...
This paper is about safety assessment for the pre-hydrogenation reactor with a surface crack. The pre-hydrogenation reactor contains a weld-crack defect. Safety assessment of in-service pressure vessel is based on the principle of "fit-for-service". The author has safety assessment in accordance with Chinese national standard Safety Assessment for In-service Pressure Vessels Containing Defects...
Wheat straw is an abundant agricultural residue with low commercial value, and an alternative feedstock for the production of fuel ethanol. In the present study, ethanol cooking at temperatures of 170 and 190°C, with holding times of 30, 45, 60 min using sulphate acid as a catalyst was evaluated as pretreatment method for wheat straw by measuring glucose content and enzymatic hydrolysis yield. The...
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