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SELF-CATALYZING PYROLYSIS OF OLIVE POMACE
Journal of Analytical and Applied Pyrolysis ( IF 6 ) Pub Date : 2018-09-01 , DOI: 10.1016/j.jaap.2018.08.018
Gamze Dinc , Esra Yel

Abstract In thisstudy, catalytic effect of intrinsic inorganics was evaluated by comparing pyrolysis end products obtained from pyrolysis of olive pomace (OP) in three different initial weights (30,100 and 200 g). Pyrolysis of OP with higher weights led to self-catalyzing pyrolysis resulting in approximately 20% bio-oil quantity increment when pyrolyzed OP weight increased from 30 g to 200 g. Additionally, both intrinsic inorganic percentages remained in pyrolysis chars and organic compounds in pyrolysis liquids altered with pyrolyzed OP weights. While the lowest inorganic percentage in chars was found at the pyrolysis of the highest OP weight, the highest belonged to 30 g OP pyrolysis. Moreover, while oxygenated compounds, namely aldehydes and ketones, in pyrolysis bio-oil decreased explicitly at 200 g OP pyrolysis, variety in alkane and alkene compounds enhanced at higher weights OP pyrolysis. Finally, the effects of temperature, heating rate and retention time on pyrolysis products were evaluated. Results showed that liquid products increased at 5 °C/min heating rate and decreased at 1 °C/min heating rate as pyrolysis temperature increased from 450 to 600 °C in the pyrolysis without retention time. However, reverse tendency was observed in liquid product quantities in the case of pyrolysis with retention time. Furthermore, while effect of temperature increment on pyrolysis gas and liquid was mostly opposite to each other in all pyrolysis conditions, bio-chars' quantity irregularly altered as to pyrolysis conditions.

中文翻译:

橄榄果渣的自催化热解

摘要 在本研究中,通过比较三种不同初始重量(30,100 和 200 g)的橄榄果渣 (OP) 热解获得的热解终产物来评估内在无机物的催化效果。当热解的 OP 重量从 30 g 增加到 200 g 时,具有较高重量的 OP 的热解导致自催化热解,导致生物油量增加约 20%。此外,热解炭中的固有无机百分比和热解液体中的有机化合物均随热解 OP 重量的变化而变化。虽然在最高 OP 重量的热解中发现炭中的最低无机百分比,但最高的是 30 g OP 热解。此外,虽然含氧化合物,即醛和酮,在热解生物油中在 200 g OP 热解时显着减少,烷烃和烯烃化合物的多样性在更高重量的 OP 热解中得到增强。最后,评价了温度、加热速率和停留时间对热解产物的影响。结果表明,在没有停留时间的热解过程中,随着热解温度从 450°C 增加到 600°C,液体产物以 5°C/min 的加热速率增加,并以 1°C/min 的加热速率减小。然而,在具有保留时间的热解的情况下,观察到液体产物量的相反趋势。此外,虽然在所有热解条件下,温度升高对热解气体和液体的影响大多彼此相反,但生物炭的数量随热解条件发生不规则变化。评估了热解产物的加热速率和保留时间。结果表明,在没有停留时间的热解过程中,随着热解温度从 450°C 增加到 600°C,液体产物以 5°C/min 的加热速率增加,并以 1°C/min 的加热速率减小。然而,在具有保留时间的热解的情况下,观察到液体产物量的相反趋势。此外,虽然在所有热解条件下,温度升高对热解气体和液体的影响大多是相反的,但生物炭的数量随热解条件发生不规则变化。评估了热解产物的加热速率和保留时间。结果表明,在没有停留时间的热解过程中,随着热解温度从 450°C 增加到 600°C,液体产物以 5°C/min 的加热速率增加,并以 1°C/min 的加热速率减小。然而,在具有保留时间的热解的情况下,观察到液体产物量的相反趋势。此外,虽然在所有热解条件下,温度升高对热解气体和液体的影响大多彼此相反,但生物炭的数量随热解条件发生不规则变化。在具有保留时间的热解的情况下,在液体产物量中观察到相反的趋势。此外,虽然在所有热解条件下,温度升高对热解气体和液体的影响大多彼此相反,但生物炭的数量随热解条件发生不规则变化。在具有保留时间的热解的情况下,在液体产物量中观察到相反的趋势。此外,虽然在所有热解条件下,温度升高对热解气体和液体的影响大多彼此相反,但生物炭的数量随热解条件发生不规则变化。
更新日期:2018-09-01
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