Experimental Study of Gaseous Sulfur Species Formation during the Steam Hydrogasification of Coal

2014 ◽  
Vol 28 (5) ◽  
pp. 3399-3402 ◽  
Author(s):  
Qian Luo ◽  
Chan S. Park ◽  
Arun S. K. Raju ◽  
Joseph M. Norbeck
Keyword(s):  
Experimental Study ◽  
Sulfur Species ◽  
Steam Hydrogasification ◽  
Species Formation ◽  
Gaseous Sulfur

scholarly journals Simulation Study of the Formation of Corrosive Gases in Coal Combustion in an Entrained Flow Reactor

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4523
Author(s):  
Maximilian von Bohnstein ◽  
Coskun Yildiz ◽  
Lorenz Frigge ◽  
Jochen Ströhle ◽  
Bernd Epple
Keyword(s):  
Coal Combustion ◽  
Cfd Simulation ◽  
Flow Reactor ◽  
Three Dimensional ◽  
Mineral Matter ◽  
Sulfur Species ◽  
Entrained Flow ◽  
Trace Species ◽  
Entrained Flow Reactor ◽  
Gaseous Sulfur

Gaseous sulfur species play a major role in high temperature corrosion of pulverized coal fired furnaces. The prediction of sulfur species concentrations by 3D-Computational Fluid Dynamics (CFD) simulation allows the identification of furnace wall regions that are exposed to corrosive gases, so that countermeasures against corrosion can be applied. In the present work, a model for the release of sulfur and chlorine species during coal combustion is presented. The model is based on the mineral matter transformation of sulfur and chlorine bearing minerals under coal combustion conditions. The model is appended to a detailed reaction mechanism for gaseous sulfur and chlorine species and hydrocarbon related reactions, as well as a global three-step mechanism for coal devolatilization, char combustion, and char gasification. Experiments in an entrained flow were carried out to validate the developed model. Three-dimensional numerical simulations of an entrained flow reactor were performed by CFD using the developed model. Calculated concentrations of SO2, H2S, COS, and HCl showed good agreement with the measurements. Hence, the developed model can be regarded as a reliable method for the prediction of corrosive sulfur and chlorine species in coal fired furnaces. Further improvement is needed in the prediction of some minor trace species.

A continuous monitor-sulfur chemiluminescence detector (CM-SCD) system for the measurement of total gaseous sulfur species in air

1999 ◽  
Vol 33 (4) ◽  
pp. 625-632 ◽  
Author(s):  
Douglas L. MacTaggart ◽  
Sherry O. Farwell ◽  
Julia R. Burdge ◽  
Zhong-Tao Cai ◽  
Timothy J. Haakenson ◽  
...  
Keyword(s):  
Sulfur Species ◽  
Gaseous Sulfur ◽  
Chemiluminescence Detector ◽  
Continuous Monitor ◽  
Sulfur Chemiluminescence Detector

Comparison of CFD Simulations with Measurements of Gaseous Sulfur Species Concentrations in a Pulverized Coal Fired 1 MWth Furnace

2016 ◽  
Vol 30 (11) ◽  
pp. 9836-9849 ◽  
Author(s):  
Maximilian von Bohnstein ◽  
Josef Langen ◽  
Lorenz Frigge ◽  
Alexander Stroh ◽  
Jochen Ströhle ◽  
...  
Keyword(s):  
Pulverized Coal ◽  
Cfd Simulations ◽  
Sulfur Species ◽  
Gaseous Sulfur

An unexpected gaseous sulfur species

Science ◽  
2015 ◽  
Vol 349 (6243) ◽  
pp. 42.12-42
Author(s):  
Jake Yeston
Keyword(s):  
Sulfur Species ◽  
Gaseous Sulfur

Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

1995 ◽  
Vol 53 ◽  
pp. 636-637
Author(s):  
Norio Baba ◽  
Norihiko Ichise ◽  
Syunya Watanabe
Keyword(s):  
Experimental Study ◽  
Spherical Aberration ◽  
Incident Beam ◽  
Optical Parameters ◽  
Beam Tilting ◽  
Illumination Method ◽  
Restoration Method ◽  
Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

An Experimental Study of Some Properties of Stuttered Words

1962 ◽  
Vol 5 (4) ◽  
pp. 387-394 ◽  
Author(s):  
Bruce Quarrington ◽  
Jerome Conway ◽  
Nathan Siegel
Keyword(s):  
Experimental Study

Experimental study of total body washout employing extracorporeal circulation and hypothermia

1974 ◽  
Vol 126 (2) ◽  
pp. 243-248
Author(s):  
A WAKABAYASHI ◽  
T KUBO ◽  
K CHARNEY ◽  
Y NAKAMURA ◽  
J CONNOLLY
Keyword(s):  
Experimental Study ◽  
Extracorporeal Circulation ◽  
Total Body

Gastric Freezing: An Experimental Study

1963 ◽  
Vol 45 (3) ◽  
pp. 374-383 ◽  
Author(s):  
Donald C. McIlrath ◽  
George A. Hallenbeck ◽  
Hubert A. Allen ◽  
Charles V. Mann ◽  
Edward J. Baldes ◽  
...  
Keyword(s):  
Experimental Study
Sign in / Sign up

Export Citation Format

Share Document