کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6467689 | 1423259 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effects of reactor design on the synthesis of titanium carbide-derived carbon
ترجمه فارسی عنوان
اثرات طراحی راکتور بر سنتز کربن حاصل از کاربید تیتانیوم
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کلمات کلیدی
کربن مشتق شده از کاربید، تیتانیوم، اچینگ جزئی طراحی راکتور، استخراج هسته پوسته،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Titanium carbide-derived carbon with residual metal is synthesized by partial chlorination at 500 °C. This partial metal removal in the carbide creates vacancies, about which the carbon reorganizes to form an amorphous, porous carbon structure. To understand the titanium removal process on a bulk scale, three reactor designs were tested: (1) a flow-over horizontal-bed reactor, (2) a vertical flow-through packed-bed reactor, and (3) a fluidized-bed reactor. These reactors were chosen to investigate how various Cl2 flow patterns impact the etching uniformity on individual TiC-CDC particles. Both the horizontal- and packed-bed reactors lost approximately 10-15 wt% of the original Ti content in 0.5 h and lost more than 95 wt% of the Ti content at 3 h of etching; however, the fluidized-bed reactor lost approximately 85 wt% of the original Ti content in 0.5 h and reached a level of etching corresponding to more than 95 wt% at 1 h. Additionally, the horizontal- and packed-bed reactors were found to etch the TiC-CDC particles non-uniformly, while the fluidized-bed reactor produced samples with uniformly etched particles that followed the core-shell model of Ti extraction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 160, 16 March 2017, Pages 191-199
Journal: Chemical Engineering Science - Volume 160, 16 March 2017, Pages 191-199
نویسندگان
Michael R. Dutzer, Michael C. Mangarella, Jennifer A. Schott, Sheng Dai, Krista S. Walton,