The study on the selective oxidation of H2S over the mixture zeolite NaX-WO3 catalysts

被引：9

作者：

Pi, JH ^{[1
]}

Lee, DH ^{[1
]}

Lee, JD ^{[1
]}

Jun, JH ^{[1
]}

Park, NK ^{[1
]}

Ryu, SO ^{[1
]}

Lee, TJ ^{[1
]}

机构：

[1] Yeungnam Univ, Natl Res Lab, Sch Chem Engn & Technol, Kyongsan 712749, South Korea

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2004年 / 21卷 / 01期

关键词：

elemental sulfur; hydrogen sulfide; selective oxidation; WO3; zeolite NaX;

D O I：

10.1007/BF02705390

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

At temperatures lower than 250degreesC the deactivation of zeolite NaX catalyst occurred in the presence of water vapor. The gradual accumulation of water vapor on the surface of catalyst could cause deactivation of catalyst. The zeolite NaX-WO3 catalysts were prepared to study a method preventing deactivation of catalysts from the adsorption of water vapor. The zeolite NaX-WO3 (9: 1) with a low content of WO3 showed the highest conversion of H2S. It is believed that the addition of WO, caused either a decrease of the strong adsorption of water vapor on the zeolite NaX or an increase of the reducibility of WO, by some interactions between zeolite NaX and WO3.

引用

页码：126 / 131

页数：6

共 23 条

[1] Multi-level modeling of SOFC-gas turbine hybrid system [J].

Chan, SH ;

Ho, HK ;

Tian, Y .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2003, 28 (08) :889-900

[2] Phase cooperation of V2O5 and Bi2O3 in the selective oxidation of H2S containing ammonia and water [J].

Cho, YG ;

Hwang, BH ;

Park, DW ;

Woo, HC ;

Chung, JS .

KOREAN JOURNAL OF CHEMICAL ENGINEERING, 2002, 19 (04) :611-616

[3]

CHOPIN T, 1990, Patent No. 422999

[4] Selective oxidation of H2S in the presence of ammonia and water using Co3O4/SiO2 catalyst [J].

Chun, SW ;

Jang, JY ;

Park, DW ;

Woo, HC ;

Chung, JS .

KOREAN JOURNAL OF CHEMICAL ENGINEERING, 1997, 14 (03) :216-218

[5]

Chun SW, 1998, APPL CATAL B-ENVIRON, V16, P235

[6] Simulation of process for electrical energy production based on molten carbonate fuel cells [J].

De Simon, G ;

Parodi, F ;

Fermeglia, M ;

Taccani, R .

JOURNAL OF POWER SOURCES, 2003, 115 (02) :210-218

[7]

GOAR EN, 1994, OIL GAS J, V28, P45

[8]

HAMAMATSU T, 1993, J GAS TURB SOC JPN, V18, P3

[9] The removal of hydrogen sulfide with manganic sorbent in a high-temperature fluidized-bed reactor [J].

Jang, HT ;

Kim, SB ;

Doh, DS .

KOREAN JOURNAL OF CHEMICAL ENGINEERING, 2003, 20 (01) :116-120

[10] PROSPECTS FOR ADVANCED COAL-FUELED FUEL-CELL POWER-PLANTS [J].

JANSEN, D ;

VANDERLAAG, PC ;

OUDHUIS, ABJ ;

RIBBERINK, JS .

JOURNAL OF POWER SOURCES, 1994, 49 (1-3) :151-165

← 1 2 3 →