Radiolytic desulphurization of high-sulphur coals

Tripathi, P. S. M.; Ram, L. C.; Jha, S.K.; Bandopadhyay, Anup Kumar; Murty, G. S.

doi:10.1016/0016-2361(91)90090-w

Cited by 21 publications

(6 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cost effective microbial processes can be implemented in pilot plant commercially considering some factors like capacity of reactor for treatment of coal, size of particles to be processed, suitability of reactor for high concentration of coal with short residence time, selection of optimal condition for minimum production of jarosite, etc. Radiation techniques have been reported to be effective for removal of sulfur 145. The gamma radiolytic pretreatment by ionising gamma rays from Co‐60 removes the organic sulfur from coal leaving the hydrocarbon matrix of coal unaffected.…”

Section: Discussionmentioning

confidence: 99%

Biodepyritisation of coal

Acharya

Sukla

Misra

2003

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

This review provides a detailed summary of the recent and past research activities in the area of biodesulfurisation of coal. It provides information about microorganisms important for biodesulfurisation of coal, with the emphasis on Thiobacillus ferrooxidans. The review presents an insight into various methods of desulfurisation of coal combining physical and biological methods. Also, there are discussions on coal structure, distribution, mechanism and kinetics of pyrite oxidation and jarosite precipitation. Finally, areas requiring further research are identified.

show abstract

Section: Discussionmentioning

confidence: 99%

Biodepyritisation of coal

Acharya

Sukla

Misra

2003

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…The cost of the reagents, along with the expense of recovering the sulfur-bearing compounds, generally keep this process from being widely considered as a possible industrial process. Processes which produce oxidizing agents in situ, such as gamma-ray irradiation (Tripathi et al, 1991) have also been tested on a laboratory scale.…”

Section: Oxidative Desulfurizatio_mentioning

confidence: 99%

Coal desulfurization by bacterial treatment and column flotation. Final report

Kawatra

1994

View full text Add to dashboard Cite

Effects of Baffle Open Area 7.3.3 Effects of Baffle Position 7.4 EXPERIMENTAL RESULTS 86 7.4.1 Baffle Open Area 86 7.4.2 Baffle Position and Tracer Results 89 7.5 DISCUSSION 93 7.5.1 Effects of Baffling 93 7.5.2 Comparison of the Baffled Column and Conventional Cells 98 7.6 CONCLUSIONS 104 8 PLANT STUDIES AT EMPIRE COAL 106 8.1 INTRODUCTION 106 8.2 COLUMN DESIGN 106 8.3 PLANT CONDITIONS 108 8.4 OPERATING CONSIDERATIONS 111 8.5 REAGENT DETERMINATION FOR ON-LINE TESTS 114 8.6 CONTINUOUS ON-LINE EXPERIMENTS 118 8.6.1 Pyrite Recovery 8.6.2 Capacity Effects 8.7 OFF-LINE CONTINUOUS TESTS 8.7.1 Off-Line Continuous Test Procedure 8.7.2 Off-line Continuous Test Results 8.7.3 Particle Size Effects 8.8 COARSE-COAL BATCH EXPERIMENTS 8.8.1 Procedure 8.8.2 Results-Baffle Effects 8.8.3 Results-Frother Effects 8.9 CONCLUSIONS 9 MARKETING AND COMMERCIALIZATION 150 9.1 APPLICATIONS 9.2 PROCESS WASTES 9.3 IMPLICATIONS FOR THE EMPIRE COAL PLANT 150 9.4 PROCESS IMPLEMENTATION 150 9.5 COST ESTIMATES

show abstract

“…With such a huge climate shift many uncomfortable outcomes such as sea level rise, desertification, diminished land productivity, and increased possibility of extreme events will inevitably occur, thereby hampering the economic growth and environmental protection. Despite the global climate shift and greenhouse gas (GHG) effects, the use of fossil fuels also emits considerable amounts of sulfur dioxide (SO 2 ) that can deteriorate the regional environment via the more occurrences of acid rain and acid mine drainage (Kalkreuth et al., 2014; Tripathi et al., 1991; Weber et al., 2004), all of which make regional economic and environmental development unsustainable. For instance, Kuo and Tsuang (2005) point out that Taiwan’s annual SO 2 emission is approximately 71,000 t and many health problems and reduction of social welfare have been observed.…”

Section: Introductionmentioning

confidence: 99%

A sector-wide economic and environmental analysis on bioenergy production and emission consequences

Kung

Zhang

Gong

et al. 2019

Energy Exploration & Exploitation

View full text Add to dashboard Cite

Mining and using depletable fossil fuel usually result in severe environmental problem such as climate change in the global scale and acid rain in the regional level. To improve sustainable development, it is important to substitute fossil fuel with renewable and clean energy sources. In this study we employ a partial equilibrium, price endogenous mathematical programming model to analyze how bioenergy development in Taiwan can (1) enhance domestic energy production, (2) reduce the carbon dioxide (CO 2) and sulfur dioxide (SO 2) emissions, and (3) protect the environment. The results show that the ethanol expands with an increase in gasoline price, but SO 2 emission reduction would shrink because of a reduction in renewable electricity generation. Conversely, up to 10.4% of Taiwan's annual SO 2 emission can be reduced in the face of higher coal and emission prices. A tradeoff between CO 2 and SO 2 emission reductions is perceived during the switch of production of liquid and nonliquid bioenergy. Policy implications such as technology selection, market operation, and government subsidy are also discussed.

show abstract

Radiolytic desulphurization of high-sulphur coals

Cited by 21 publications

References 6 publications

Biodepyritisation of coal

Biodepyritisation of coal

Coal desulfurization by bacterial treatment and column flotation. Final report

A sector-wide economic and environmental analysis on bioenergy production and emission consequences

Contact Info

Product

Resources

About