کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1276518 1497507 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Distributed production of hydrogen by auto-thermal reforming of fast pyrolysis bio-oil
ترجمه فارسی عنوان
تولید توزیع شده هیدروژن توسط رگولاتور اتوماتیک حرارتی روغن زیتون پیرولیز سریع
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی


• Showed bench-scale auto-thermal reforming of four biomass fast pyrolysis liquids.
• Bio-oil elemental composition (C, O) has the largest impact on hydrogen yield.
• Carbon-to-gas conversion depends on evaporation efficiency and thus oil properties.
• Estimated H2 cost at 1500 kg/day scale to be $4.26/kg (≫current US natural gas).

We demonstrated an auto-thermal reforming process for producing hydrogen from biomass pyrolysis liquids. Using a noble metal catalyst (0.5% Pt/Al2O3 from BASF) at a methane-equivalent space velocity of around 2000 h−1, a reformer temperature of 800 °C–850 °C, a steam-to-carbon ratio of 2.8–4.0, and an oxygen-to-carbon ratio of 0.9–1.1, we produced 9–11 g of hydrogen per 100 g of fast pyrolysis bio-oil, which corresponds to 70%–83% of the stoichiometric potential. The elemental composition of bio-oil and the bio-oil carbon-to-gas conversion, which ranged from 70% to 89%, had the most significant impact on the yield of hydrogen. Because of incomplete volatility the remaining 11%–30% of bio-oil carbon formed deposits in the evaporator. Assuming the same process efficiency as that in the laboratory unit, the cost of hydrogen production in a 1500 kg/day plant was estimated at $4.26/kg with the feedstock, fast pyrolysis bio-oil, contributing 56.3% of the production cost.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 39, Issue 2, 13 January 2014, Pages 744–750
نویسندگان
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