Large-scale synthesis of multi-walled carbon nanotubes in a continuous inclined mobile-bed rotating reactor by the catalytic chemical vapour deposition process using methane as carbon source
Carbon nanotubes; CCVD process; methane; continuous reactor; large-scale production
Abstract :
[en] Multi-walled carbon nanotubes (CNTs) were produced in a continuous inclined mobile-bed rotating reactor by the catalytic chemical vapour deposition of methane on a bimetallic Ni-Mo/MgO catalyst whose activity remains constant in the course of time. Measurements performed on the continuous reactor were validated to ensure that the installation worked correctly and that measurements were precise enough. The performance of the reactor was simulated using a model based on the chemical reactor engineering approach. Hypotheses of the model were verified, and a kinetic study was performed to obtain a kinetic rate expression and to determine the catalytic activity as a function of time. The purity level of produced CNTs depends on the desired properties of the product, so the operating conditions are linked to the purity level that is required. A minimal purity level corresponds to high carbon production, and a maximal purity level corresponds to high specific productivity. It was shown that operating conditions had to be fixed to reach a given specific productivity or a given carbon production, and the optimized operating conditions leading to those two opposite purity level objectives were established.
Disciplines :
Chemical engineering
Author, co-author :
Douven, Sigrid ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Génie catalytique
Pirard, Sophie ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Génie catalytique
Chan, Fang-Yue
Pirard, René ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Génie catalytique
Heyen, Georges ; Université de Liège - ULiège > Département de chimie appliquée > LASSC (Labo d'analyse et synthèse des systèmes chimiques)
Pirard, Jean-Paul ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Génie catalytique
Language :
English
Title :
Large-scale synthesis of multi-walled carbon nanotubes in a continuous inclined mobile-bed rotating reactor by the catalytic chemical vapour deposition process using methane as carbon source
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
Thayer A.M. Chem. Eng. News 2007, 85:29-35.
Pirard J.P. Chem. Eng. News 2008, 86:5.
Corrias M., Caussat B., Ayral A., Durand J., Kihn Y., Kalck P., Serp P. Chem. Eng. Sci. 2003, 58:4475-4482.
Venegoni D., Serp P., Feurer R., Kihn Y., Vahlas C., Kalck P. Carbon 2002, 40:1799-1807.
Morançais A., Caussat B., Kihn Y., Kalck P., Plee D., Gaillard P., Bernard D., Serp P. Carbon 2007, 45:624-635.
Philippe R., Serp P., Kalck P., Kihn Y., Bordere S., Plee D., Gaillard P., Bernard D., Caussat B. AIChE J. 2009, 55:450-464.
Philippe R., Serp P., Kalck P., Kihn Y., Bordere S., Plee D., Gaillard P., Bernard D., Caussat B. AIChE J. 2009, 55:465-474.
Wei F., Zhang Q., Qian W.-Z., Yu H., Wang Y., Luo G.-H., Xu G.-H., Wang D.-Z. Powder Technol. 2008, 10-20.
Yu H., Zhang Q.F., Gu G.S., Wang Y., Luo G.H., Wei F. AIChE J. 2006, 52:4110-4123.
Tanaka K., Endo M., Takeuchi K., Hsu W.-K., Kroto H.W., Terrones M., Walton D.R.M. The Science and Technology of Carbon Nanotubes 1999, Elsevier Science, Amsterdam, pp. 143-152.
Kakehi K., Noda S., Chiashi S., Maruyama S. Chem. Phys. Lett. 2006, 428:381-385.
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.