scholarly journals Supercritical Water Oxidation of Coal Gasification Wastewater

2015 ◽  
Author(s):  
Laisheng Wang ◽  
Shuzhong Wang ◽  
Yuzhen Wang ◽  
Yanhui Li
Keyword(s):  
Supercritical Water ◽  
Water Oxidation ◽  
Coal Gasification ◽  
Supercritical Water Oxidation ◽  
Coal Gasification Wastewater

Technical and Economic Analysis of Supercritical Water Oxidation and Biochemical Process for Lurgi Coal Gasification Wastewater Treatment

2013 ◽  
Vol 664 ◽  
pp. 265-269
Author(s):  
Yu Zhen Wang ◽  
Shu Zhong Wang ◽  
Yang Guo ◽  
Dong Hai Xu ◽  
Guang Xin Yu ◽  
...  
Keyword(s):  
Economic Analysis ◽  
Supercritical Water ◽  
Water Oxidation ◽  
Coal Gasification ◽  
Flow Sheet ◽  
Supercritical Water Oxidation ◽  
Biochemical Process ◽  
Technical And Economic Analysis ◽  
Coal Gasification Wastewater ◽  
Operation Cost

The technical and economic analysis of supercritical water oxidation (SCWO) and biochemical process for Lurgi coal gasification wastewater (LCGW) treatment were carried out. The findings include the analysis of flow sheet, effluent quality and operation cost of the two processes. Studies show that the SCWO process is more simply and easier to control than the biochemical process. The effluent treated with SCWO process could reach national discharge standard I (GB 8978-1996) without other pretreatment and advanced processes, and could gain 2.3 yuan RMB/t(LCGW). While the operation cost of biochemical treatment is 41.8 yuan YMB/t(LCGW). The SCWO process shows a unique advantage in both technology and economy and will be a promising technique for LCGW treatment.

Supercritical Water Oxidation of Lurgi Coal Gasification Wastewater and Evaluation of the Combined Process with Gasification

2012 ◽  
Vol 610-613 ◽  
pp. 2203-2210 ◽  
Author(s):  
Yu Zhen Wang ◽  
Shu Zhong Wang ◽  
Yang Guo ◽  
Dong Hai Xu ◽  
Yan Meng Gong ◽  
...  
Keyword(s):  
Supercritical Water ◽  
Water Oxidation ◽  
Coal Gasification ◽  
Batch Reactor ◽  
Supercritical Water Oxidation ◽  
Combined Process ◽  
Technical Feasibility ◽  
Volatile Phenol ◽  
Coal Gasification Wastewater ◽  
Oxygen Ratio

Degradation of Lurgi coal gasification wastewater in supercritical water was investigated in a batch reactor, and a combined process of supercritical water oxidation (SCWO) and gasification was put forward to utilize the material and energy in SCWO effluent. The technical feasibility and economy were evaluated. In the SCWO process, when operated at condition of 500 °C, 25 MPa, oxygen ratio of 3.5 and residence time of 15 min, the concentrations of COD, NH3-N and volatile phenol in effluent reduced to 27, 11 and 0.4 mg/L, respectively, where the removal efficiencies were 99.81%, 99.85% and 99.99%, accordingly. The effluent could reach national discharge standard I (GB 8978-1996), and can be used as the gasification agents of gasifier via a pressure reducer. For a single Lurgi gasifier, the combied process could save 23 t/h of steam and 1550 kg/h of O2, which is equal to 4996 yuan/h.

Kinetics of Supercritical Water Oxidation. SERDP Compliance Technical Thrust Area

1996 ◽  
Author(s):  
Steven F. Rice ◽  
Richard R. Steeper ◽  
Russell G. Hanush ◽  
Jason D. Aiken ◽  
Eric Croiset
Keyword(s):  
Supercritical Water ◽  
Water Oxidation ◽  
Supercritical Water Oxidation ◽  
Kinetics Of

Kinetics of Supercritical Water Oxidation

1995 ◽  
Author(s):  
Steven F. Rice ◽  
Jefferson W. Tester ◽  
Kenneth Brezinsky
Keyword(s):  
Supercritical Water ◽  
Water Oxidation ◽  
Supercritical Water Oxidation ◽  
Kinetics Of

Kinetics of Supercritical Water Oxidation

1995 ◽  
Author(s):  
Steven F. Rice ◽  
Jefferson W. Tester ◽  
Kenneth Brezinsky
Keyword(s):  
Supercritical Water ◽  
Water Oxidation ◽  
Supercritical Water Oxidation ◽  
Kinetics Of

Recent Developments of Supercritical Water Oxidation: A Patents Review

2011 ◽  
Vol 4 (3) ◽  
pp. 219-230 ◽  
Author(s):  
Angel Martin ◽  
Maria Dolores Bermejo ◽  
Maria Jose Cocero
Keyword(s):  
Supercritical Water ◽  
Water Oxidation ◽  
Supercritical Water Oxidation ◽  
Recent Developments

Design of a Small-Scale Supercritical Water Oxidation Reactor. Part II: Numerical Modeling

2021 ◽  
Author(s):  
Anmol L. Purohit ◽  
John A. Misquith ◽  
Brian R. Pinkard ◽  
Stuart J. Moore ◽  
John C. Kramlich ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Supercritical Water ◽  
Water Oxidation ◽  
Small Scale ◽  
Supercritical Water Oxidation ◽  
Oxidation Reactor
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