کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5148494 1497372 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Photocatalytic reforming of pinewood (Pinus ponderosa) acid hydrolysate for hydrogen generation
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Photocatalytic reforming of pinewood (Pinus ponderosa) acid hydrolysate for hydrogen generation
چکیده انگلیسی
Dilute acid hydrolysis of milled Pinus ponderosa (pinewood) was performed in a high-temperature high-pressure 300 ml SS316 Parr reactor to produce sacrificial electron donors for downstream photocatalytic H2 generation. Samples of the hydrolysate withdrawn at regular time intervals were analysed for total organic carbon (TOC), sugars and organic compounds. The influence of acid type (HCl, H2SO4, and HNO3) and its concentration, temperature, residence time and biomass loading on pinewood hydrolysis and release of the glucose and xylose sugars (GX) was investigated. Maximum GX sugar yield was obtained with 1 v/v% HCl hydrolysis of 6.66 wt% pinewood slurry at 180 °C for 120 min. The hydrolysate was treated with activated charcoal (AC) and photoreformed for H2 generation using 1% Pt/TiO2 catalyst. Under optimized reaction conditions, 8 consecutive photocatalytic cycles of the hydrolysate produced cumulative yield of 19.9 ml H2/g pinewood, which is 26 mol% of GX observed in the hydrolysate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 5, 2 February 2017, Pages 2839-2848
نویسندگان
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