کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
150703 456455 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental analysis of soot abatement in reducing syngas for high temperature fuel cell feeding
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Experimental analysis of soot abatement in reducing syngas for high temperature fuel cell feeding
چکیده انگلیسی

The present work proposes a novel approach for the removal of soot from a synthesis gas mixture for fuel cell applications, based on reactions between the particulate and syngas in a wall-flow filter, while respecting the constraints of an SOFC (solid oxide fuel cell) and avoiding excesses of trap backpressure.The experiments were performed on a test-rig with a TPOX (thermal partial oxidation) reformer and a wall-flow soot-trap. The operating range varied from 3 to 8 kW of thermal load and from 0.40 to 0.50 of air-to-fuel ratio. The work shows that is possible to establish an equilibrium between the soot that enters the filter and the soot that is gasified, in order to avoid backpressures due to particle deposition in the channels, by running the reformer at specific air ratio conditions along the power load and without the addition of oxygen. The capacity of the synthesis gas mixture to regenerate the trap has appeared to be directly related to the thermal load.The final part instead presents results concerning the effects of lambda and air pre-heating, analysed separately, in order to evaluate the effect of each one on the kinetics of the filter regeneration. The tests showed how high lambda leads to a faster gasification rate of soot. A positive effect could also be achieved by increasing the air pre-heating temperature that enters the reactor, but this parameter does not appear to be as effective as the previous ones.


► Soot gasification has been realised in absence of oxygen, using a synthesis gas.
► Combination of a TPOX reformer together with a soot trap to produce a soot free syngas.
► We examined the effect of air to fuel ratio on soot gasification via syngas.
► We examined the effect of air pre-heating on soot gasification via syngas.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volumes 176–177, 1 December 2011, Pages 295–301
نویسندگان
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