PMID- 22341981
OWN - NLM
STAT- MEDLINE
DCOM- 20120723
LR  - 20161125
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 213-214
DP  - 2012 Apr 30
TI  - Effect of precursor and preparation method on manganese based activated carbon 
      sorbents for removing H2S from hot coal gas.
PG  - 184-92
LID - 10.1016/j.jhazmat.2012.01.080 [doi]
AB  - Activated carbon (AC) supported manganese oxide sorbents were prepared by the 
      supercritical water impregnation (SCWI) using two different precursor of 
      Mn(NO(3))(2) (SCW(N)) and Mn(Ac)(2).4H(2)O (SCW(A)). Their capacities of removing 
      H(2)S from coal gas were evaluated and compared to the sorbents prepared by the 
      pore volume impregnation (PVI) method. The structure and composition of different 
      sorbents were characterized by XRD, SEM, TEM, XPS and XANES techniques. It is 
      found that the precursor of active component plays the crucial role and SCW(N) 
      sorbents show much better sulfidation performance than the SCW(A) sorbents. This 
      is because the Mn(3)O(4) active phase of the SCW(N) sorbents are well dispersed 
      on the AC support, while the Mn(2)SiO(4)-like species in the SCW(A) sorbent can 
      be formed and seriously aggregated. The SCW(N) sorbents with 2.80% and 5.60% 
      manganese are favorable for the sulfidation reaction, since the Mn species are 
      better dispersed on the SCW(N) sorbents than those on the PV(N) sorbents and 
      results in the better sulfidation performance of the SCW(N) sorbents. As the Mn 
      content increases to 11.20%, the metal oxide particles on AC supports aggregate 
      seriously, which leads to poorer sulfidation performance of the SCW(N)11.20% 
      sorbents than that of the PV(N)11.20% sorbents.
CI  - Copyright (c) 2012 Elsevier B.V. All rights reserved.
FAU - Wang, Jiancheng
AU  - Wang J
AD  - Key Laboratory of Coal Science and Technology, Taiyuan University of Technology, 
      Ministry of Education and Shanxi Province, Taiyuan 030024, PR China. 
      jc_wang2008@yahoo.com
FAU - Qiu, Biao
AU  - Qiu B
FAU - Han, Lina
AU  - Han L
FAU - Feng, Gang
AU  - Feng G
FAU - Hu, Yongfeng
AU  - Hu Y
FAU - Chang, Liping
AU  - Chang L
FAU - Bao, Weiren
AU  - Bao W
LA  - eng
GR  - Canadian Institutes of Health Research/Canada
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20120201
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Coal)
RN  - 0 (Gases)
RN  - 0 (Manganese Compounds)
RN  - 0 (Oxides)
RN  - 0 (Sulfides)
RN  - 42Z2K6ZL8P (Manganese)
RN  - 64J2OA7MH3 (manganese oxide)
RN  - 7440-44-0 (Carbon)
RN  - YY9FVM7NSN (Hydrogen Sulfide)
SB  - IM
MH  - Adsorption
MH  - Carbon/*chemistry
MH  - Coal/*analysis
MH  - Gases/chemistry
MH  - Hot Temperature
MH  - Hydrogen Sulfide/*isolation & purification
MH  - Manganese/*chemistry
MH  - Manganese Compounds/chemistry
MH  - Microscopy, Electron, Scanning
MH  - Microscopy, Electron, Transmission
MH  - Nanoparticles
MH  - Oxides/chemistry
MH  - Photoelectron Spectroscopy
MH  - Porosity
MH  - Sulfides/chemistry
MH  - X-Ray Diffraction
EDAT- 2012/02/22 06:00
MHDA- 2012/07/24 06:00
CRDT- 2012/02/21 06:00
PHST- 2011/08/10 00:00 [received]
PHST- 2012/01/20 00:00 [revised]
PHST- 2012/01/23 00:00 [accepted]
PHST- 2012/02/21 06:00 [entrez]
PHST- 2012/02/22 06:00 [pubmed]
PHST- 2012/07/24 06:00 [medline]
AID - S0304-3894(12)00122-7 [pii]
AID - 10.1016/j.jhazmat.2012.01.080 [doi]
PST - ppublish
SO  - J Hazard Mater. 2012 Apr 30;213-214:184-92. doi: 10.1016/j.jhazmat.2012.01.080. 
      Epub 2012 Feb 1.