Thermodynamic modelling and energy balance of direct methanation of glycerol for Bio-SNG production

(چکیده مقاله) :
Abstract :

Glycerol can be considered a waste product when the cost of processing is higher than the processed glycerol value. In these situations, conversion of glycerol to an energy vector may be more beneficial. The aim of this work was to design and assess the feasibility of a process for low temperature steam reforming of glycerol (GLTSR). GLT-SR is a novel form of direct methanation that produces a CH4 rich, renewable fuel gas (Bio-SNG) that could substitute the current natural gas consumption associated with biodiesel production. In this work, thermodynamic modelling to determine the conditions that suited CH4 production and minimised carbon below 600K as well as the impact of molar steam to carbon ratio (S/C) and pressure on the biomass to fuel efficiency of a GLT-SR plant were carried out using Aspen Plus® (V8.8) chemical processing software. Operating at 8atm provided the benefits of high conversion to CH4 whilst minimising the outlet reformer temperature and achieving the required inlet temperature for catalyst operation. The Bio-SNGproduced hadanLHVof16.7MJkg−1 andhad propertieslike landfillgasandbiogas. Anenergy balance of the process determined that the electricity demand was negligible due to the low energy use of pumps and fans without the need for compressors. Operating at 8atm, the production of Bio-SNG in the GLT-SR plant has the potential to offset 30% of the natural gas embodied energy requirement or 8.9% of the total embodied energy requirement for soybean biodiesel production from farm to use.

(توضیحات تکمیلی) :

(توضیحات تکمیلی) :
Description :

مقاله ISI انگلیسی اصلی
سال انتشار:2018
فایل ISI انگلیسی اصلی ، با فرمت Pdf
تعداد صفحات فایل ISI انگلیسی اصلی: 10 صفحه
جهت دسترسی به ترجمه این مقاله به صفحه قبل بازگردید مقاله ای که در سمت چپ ، این مقاله قرار دارد ترجمه این مقاله می باشد .

Authors / Descriptions(نویسندگان/توضیحات): نویسندگان / توضیحات: مقاله ISI مربوط به ترجمه مقابل / مدلسازی ترمودینامیکی و موازنه انرژی متانیزاسیون مستقیم گلیسرول برای تولید Bio-SNG / نویسندگان: Robert Whitea,⁎, Valerie Dupontb, Timothy Cockerillc
Sent date(تاریخ ارسال) : 1398/03/22  |   6/12/2019
Number of visits(تعداد بازدید): 478
Key words (کلمات کلیدی): Low temperature; Steam reforming; Glycerol; Direct methanation; Bio-SNG; Soybean biodiesel
Number of pages(تعداد صفحات) : 10
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