By Richard & Bernard D. Blaustein, eds. Markuszewski

ISBN-10: 0841209901

ISBN-13: 9780841209909

ISBN-10: 0841211566

ISBN-13: 9780841211568

E-book through Marhuszewski, Richard and Bernard Blaustein, Eds

Show description

Read or Download Fossil Fuels Utilization. Environmental Concerns PDF

Similar chemistry books

Get Advances in Nitrogen Heterocycles, Volume 3 PDF

This quantity incorporates a diversity of subject matters equivalent to the activation and manipulation of pyrroles, the synthesis of annelated pyrroles utilizing acylation reactions and the synthesis of kainoids, a kin of hugely biologically lively nitrogen heterocycles.

Applied Polymer Science<span class="edition", Second - download pdf or read online

Content material: A century of polymer technology and know-how / Herman F. Mark -- creation to polymer technology and expertise / Charles E. Carraher, Jr. and Raymond B. Seymour -- Anionic polymerization / Maurice Morton -- Coordinated anionic polymerization and polymerization mechanisms / Frederick J. Karol -- contemporary advancements in cationic polymerization / Virgil Percec -- Emulsion polymerization / Gary W.

Extra info for Fossil Fuels Utilization. Environmental Concerns

Example text

Am. Chem. , 1981, pp. 401-414. ; ACS Symposium Series; American Chemical Society: Washington, DC, 1986. ch004 Coal Desulfurization and Demineralization by Molten Caustic Mixtures Richard Markuszewski, D. R. Mroch, G. A. Norton, and W. E. Straszheim Ames Laboratory, Iowa State University, Ames, IA 50011 Several bituninous coals have been treated with molten mixtures of NaOH plus KOH at 350-370°C in a 1:10 coalto-caustic r a t i o for 1 hour and then washed with water, dilute acid, and finally with water again.

8 (PT8) and I l l i n o i s No. 6 (IL6 or IL6A) coals are presented in Table I I . For the Pittsburgh coal cleaned under stand­ ard conditions (runs #3 and #16), 77-82% ash removal and 65-72% sul­ fur removal were achieved with recoveries around 85-90%. For the I l l i n o i s coal, (IL6 #6, IL6A #1, and IL6A #2), the ash and sulfur removal was better at 87-89% and 72-78%, r e s p e c t i v e l y , while recovery was lower at 75-79% on a moisture- and ash-free (MAF) basis. Improved Conditions. When more water was used for the washing step (PT8 #10) or when the wash water was heated to 100 C (PT8 #12), both ash and sulfur removals were improved for each step without apprecia­ ble decrease in recovery.

Total Sulfur Distribution? Remarks Product Weight? 0 200 mg/l PAAX 10 mg/l F1029-D 300 mg/l PAAX 2 mg/l F1029-D F1029-D f r a c t i o n s . The t o t a l sulfur r e j e c t i o n ranged between l 6 and 3 9 ? · The lower r e j e c t i o n r a t i o of 16% was accompanied by high s e l e c t i v i t y in p y r i t i c sulfur dispersion. This was due to the higher ( 1 0 mg/l) flocculant concentration which resulted in higher coal y i e l d ( 9 3 . 1 ? wt) in the flocculated f r a c t i o n . On the other extreme, when higher dispersant concentration ( 5 0 0 mg/l) was used with lower flocculant concentration ( 2 mg/l), much less coal was flocculated ( 7 7 ?

Download PDF sample

Fossil Fuels Utilization. Environmental Concerns by Richard & Bernard D. Blaustein, eds. Markuszewski

by Mark

Rated 4.80 of 5 – based on 35 votes