Subcritical and Supercritical Water Processes

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• SERDAR YAMAN

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• SELHAN KARAGÖZ

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• KUBİLAY TEKİN

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• YILDIZ KALINCI

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To understand the influence of experimental conditions on the chemistry of biomass degradation in supercritical water, the effect of heating rate and of different catalysts (1 wt % of Raney nickel and 0.5 wt % K 2 CO 3 ) on the product distribution during hydropyrolysis of glucose is investigated. Glucose in aqueous s…

• ALİ SINAĞ

Hydropyrolysis of glucose as a model compound for cellulose in hot compressed water in the presence of K 2 CO 3 at temperatures of 400 and 500 °C and pressures of 30 and 50 MPa in the range of 1.8−16.3 min reaction time is conducted to characterize key compounds of the thermochemical conversion {phenols (phenol and cr…

• ALİ SINAĞ

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• ABDULAZIZ ATABANI

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Biomass was gasified in a continuous stirred tank reactor (CSTR) at 500 °C and various pressures (30−50 MPa), reaction times (1.5−10.5 min), and dry matter contents (1.8−5.4 wt %) of the biomass. These results are compared with the results of experiments in a batch reactor, which was heated to 500 °C with two differen…

• ALİ SINAĞ

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• GÖZDE DUMAN TAÇ

The solubility of anthracene, pyrene, chrysene, perylene, and carbazole were determined at temperatures ranging from 298 K to 498 K and pressures from 30 bar to 60 bar in subcritical (superheated) water. Increasing temperature up to 498 K increased solubilities by 5 orders of magnitude. For example, increasing the tem…