Conversion of N-containing compounds of flash steam condensate from carbamide production into hydrazine sulfate

Abstract Thirty collaborators participated in a study of the use of oxygen flask combustion for the microdeterminations of bromine, chlorine, and iodine in organic compounds. Generally, there was little difference in the precision of the various methods. Argentometric titration gave better results than did iodometric titration only in the case of bromine. The use of hydrazine sulfate gave better results in the case of iodine than when it was omitted; the same held true for hydrogen peroxide. It is recommended that the study be continued.

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Intergranular corrosion cracks of an X6CrNiTi1810 stainless steel expansion bellow stressed in heated steam/steam condensate at elevated temperature Herbsleb, G., Renner, M. and Schwaab, P.Werkst. Korros. July 1990 41, (7), 377–382 (in German)

International Journal of Fatigue ◽

10.1016/0142-1123(91)90019-u ◽

1991 ◽

Vol 13 (2) ◽

pp. 181-182

Keyword(s):

Stainless Steel ◽

Elevated Temperature ◽

Intergranular Corrosion ◽

Steam Condensate

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Design and Construction of a Heated Garden System Utilizing Steam Condensate From an On Site Boiler

Volume 6B: Energy ◽

10.1115/imece2016-68180 ◽

2016 ◽

Author(s):

Robert Dell ◽

C. S. Wei ◽

Raj Parikh ◽

Runar Unnthorsson ◽

Nicholas Mitchell ◽

...

Keyword(s):

New York ◽

New York City ◽

Plant Growth ◽

Potable Water ◽

Waste Heat ◽

District Heating ◽

Green Roofs ◽

Hot Water ◽

Steam Condensate ◽

Chp System

Municipal District Heating Services and Combined Heat and Power (CHP) systems can produce waste heat in the form of steam condensate and hot water. The authors have demonstrated (IMECE2014-39066) the potential of open field heating of green roofs to reduce thermal pollution, save potable water, and while increasing plant growth. Subsequent research in both Iceland and New York City using similar systems has resulted in the growth of out of region plants. The latest plant growth results are detailed. The latest research has indicated additional potential impediments, including the need for an additional CHP system pump. A thorough structural analysis on existing older roofs is necessary to avoid an overstressed roof. Substantial UV shielding of the plastic piping and upgrading of the pipes from braided PVC to PEX(a) was also needed. The details of selecting an appropriate heat exchanger were analyzed for a specific building and associated construction details are provided.

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