Effects of Additive on the Desulphurization Characteristics of Wastes

2011 ◽  
Vol 383-390 ◽  
pp. 3001-3004
Author(s):  
Bin Zheng ◽  
Chun Mei Lu
Keyword(s):  
High Temperature ◽  
Tube Reactor ◽  
Sulfur Capture

Effects of additive on the desulphurization characteristics of wastes were studied by the high temperature tube reactor and the KZDL-4M sulfur analyzer. The results show that after Ba(OH)2and Fe2O3is added into experimental wastes respectively, sulfur capture ability of experimental wastes increase effectively. MnCO3can only improve sulfur capture ability of experimental wastes a little or even little. Suitable additive is a useful way to improve sulfur capture ability of wastes. However, different additive affects sulfur capture ability of wastes differently, three kinds of additive can be sorted as Ba(OH)2＞Fe2O3＞MnCO3.

Subpilot Demonstration of the Carbonation−Calcination Reaction (CCR) Process: High-Temperature CO2and Sulfur Capture from Coal-Fired Power Plants

2010 ◽  
Vol 49 (11) ◽  
pp. 5094-5101 ◽  
Author(s):  
William Wang ◽  
Shwetha Ramkumar ◽  
Songgeng Li ◽  
Danny Wong ◽  
Mahesh Iyer ◽  
...  
Keyword(s):  
High Temperature ◽  
Power Plants ◽  
Sulfur Capture

High Temperature Gas Phases Reactions Of Trimethylgallium with Ammonia and Trimethylamine

1996 ◽  
Vol 423 ◽  
Author(s):  
A. Thon ◽  
S. A. Safvi ◽  
T. F. Kuech
Keyword(s):  
High Temperature ◽  
Gas Phase ◽  
Gas Phase Reactions ◽  
Gas Phases ◽  
Organic Vapor ◽  
Tube Reactor ◽  
Decomposition Processes ◽  
Metal Organic ◽  
Thermal Stability Of

AbstractThe use of trimethylgallium-trimethylamine (TMG:TMN) adduct as alternative cation precursor for MOVPE of GaN was studied by means of in-situ mass spectroscopy in an isothermal flow tube reactor. The temperature, pressure and reaction time were chosen to emulate the gas phase environment typical of the metal-organic vapor phase: epitaxy (MOVPE) of GaN. Dynamic changes in the mass spectra are reported for the gas phase reactions between trimethylgallium (TMG) and TMN in hydrogen (H2/D2) and ammonia (NH3/ND3) ambients. Evidence presented for the high temperature TMG:TMN adduct formation, followed by ethane elimination. The strength of the adduct bonding is comparable to that of TMG:NH3 and thus suppresses TMN displacement by ammonia. The thermal stability of TMG:TMN was found to be higher in ammonia ambient than it is in hydrogen. Kinetic parameters for some of the decomposition processes are given.

The Effect of Oxygen-Functional Groups on the Water Resistance of Lignite Briquette

2012 ◽  
Vol 560-561 ◽  
pp. 550-554
Author(s):  
Hong Ying Liu ◽  
Xiao Hong Lu ◽  
Xin Nan Zhao ◽  
Yu Li Yang
Keyword(s):  
High Temperature ◽  
Functional Groups ◽  
Water Resistance ◽  
Carboxyl Groups ◽  
Coal Resources ◽  
Tube Reactor ◽  
Oxygen Functional Groups ◽  
Effect Of Oxygen

Because of the increased demand for coal resources, the use of low-quality lignite increased. Heating-Pressing Utilizing is a better method to process fine lignite particles. The water resistance of lignite briquettes is important. In this study, the Baorixile lignite was dried in a lab-scale tube reactor and on pilot line. The oxygenic functional groups of lignite were analyzed at different temperature. The result indicated that carboxyl groups and phenols decreased as the temperature increasing, and phenols plays a more important role on the waterproof of lignite briquettes, especially at high temperature.

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