2019
DOI: 10.3390/pr7120960
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Process Modeling, Optimization, and Heat Integration of Ethanol Reforming Process for Syngas Production with High H2/CO Ratio

Abstract: The process modeling, parameter optimization, and heat integration of reforming ethanol to hydrogen is conducted in this paper. Modeling results show that the optimum reaction pressure for ethanol steam reforming is 1 bar. When the 7.4:1 is selected as a moderate water/ethanol ratio, the optimum reaction temperature is about 755 °C. As for heat integration, the composite curve and optimum heat-exchange network are given out by pinch technology, of which adding a heat exchanger can reduce 10,833 kW of heating d… Show more

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Cited by 6 publications
(3 citation statements)
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“…1b, hydrogen yield steadily increased with increase in temperature between 873 K and 1073 K and remain constant afterward, because of thermodynamics limitations of this system. The maximum hydrogen yield (84.8%) was observed at temperature of 1073 K relating to steam-ethanol feed molar ratio 2:1 and at pressure of 1atm, which implies that CO and H 2 are mainly produced (Xiang et al 2019). This is close to the conditions (between 873K and 973K and at a pressure of 1 atm) published by Tahir et al…”
Section: Hydrogen Yieldmentioning
confidence: 91%
See 1 more Smart Citation
“…1b, hydrogen yield steadily increased with increase in temperature between 873 K and 1073 K and remain constant afterward, because of thermodynamics limitations of this system. The maximum hydrogen yield (84.8%) was observed at temperature of 1073 K relating to steam-ethanol feed molar ratio 2:1 and at pressure of 1atm, which implies that CO and H 2 are mainly produced (Xiang et al 2019). This is close to the conditions (between 873K and 973K and at a pressure of 1 atm) published by Tahir et al…”
Section: Hydrogen Yieldmentioning
confidence: 91%
“…It implies that hydrogen production is thermodynamically favoured at 1113 K with regard to steam-to-ethanol feed molar ratio of 2:1. CO and H 2 are mainly produced with low input, and hydrogen formation is governed by the methane steam reforming, which is a major reaction below 1113K for feed ratio 2 (Xiang et al .2019;Silver et al 2015).…”
Section: Hydrogen Formationmentioning
confidence: 99%
“…Similarly, their proposed control system was based on distributed feedback controllers (PI type). Xiang et al [20] screened alternative process flow diagrams in order to ensure a flexible heat integration for the ethanol steam reforming. As was derived, the increased heat demands of steam reforming are crucial and should be taken into account during process modeling and control studies.…”
Section: Introductionmentioning
confidence: 99%