3th WCSET-2014 at Nepal
Special Session at Ho Chi Minh City University of Technology, Vietnam:
Title:
Modified zeolite X as potential adsorbents for methyl
mercaptan removal
Authors:
Le Nguyen Minh Tri, Ho Thi Vuong, Nguyen Quang Long,
Nguyen Phu Qui, Huynh Ky Phuong Ha, Winarto Kuniawan,
Hirofumi Hinode, Toshihide Baba
Abstract:
Sulfur – containing compounds are extremely dangerous
for the catalytic processes since they poison the
catalysts and shorten the catalyst’s life-time. Removal
of sulfur-containing compounds is therefore an
industrial need, for example in the petrochemical
processing plants using natural gas as the feed stream.
This study report the synthesis, characterization and
adsorption activity of modified zeolite X for the
purpose of methyl-mercaptan removal. The zeolite has
been synthesized from local available materials through
the hydrothermal method at 1000C. Modification of the
zeolite has been carried out by ion-exchange method with
several ions (Cu2+, Zn2+). The adsorbents were
characterized by various advanced techniques including
X-ray diffraction (XRD), Thermal Gravity Analysis (TGA),
Scanning Electron Spectroscopy (SEM), Inductively
coupled plasma atomic emission spectroscopy (ICP-
AES).The adsorption activity of methyl-mercaptan was
evaluated from the adsorption capacity before
breakthrough concentration. It was observed that the
presence of metal ions enhanced the methy-mercaptan
adsorption of the zeolite X.
Keywords: Sulfur-Containing
Compounds, Modified Zeolite X, Ion-Exchange, Metyl
Mercaptan
Pages:
716-717