کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1279631 1497654 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Desulfurization processes for fuel cells systems
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Desulfurization processes for fuel cells systems
چکیده انگلیسی

Adsorptive desulfurization was studied for removal of sulfur compounds from both natural gas (NG) and diesel fuel. In the former case, diverse commercial adsorbents were tested under ambient conditions, using a model NG containing nine sulfur compounds. Each material was able to adsorb different species. This issue and the presence of water in NG reduced dramatically sorbents uptake capacity. Therefore, a multistep adsorption process characterized by a high adsorptive-capacity and a rather low cost was proposed. In the case of diesel oil, two synthesized Ni/SiO2–Al2O3 sorbents and a commercial one were tested, for desulfurization of a simulated diesel, containing three sulfur species. Ni-based materials were good for removal of sulfur compounds due to the direct interaction between the heteroatom in the adsorbate and the nickel surface. Nevertheless, it was observed that the outlet sulfur concentration was dictated by adsorption of alkyl-substituted dibenzothiophene compounds, which presented the lower breakthrough times.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 33, Issue 12, June 2008, Pages 3209–3214
نویسندگان
, , , , , , ,