Heterogeneous Condensation for Abatement of Sulfuric Acid Aerosol and Water Saving

Based on the fundamentals of heterogeneous nucleation, a method to eliminate sulfuric acid aerosol associated with water recycling in the process of limestone-gypsum desulfurization was investigated. The supersaturated environment was achieved in a heat exchanger. Numerical calculation shows that high temperature drop and relative humidity are conducive to the formation of supersaturated vapor environment, and vapor heterogeneous condensation can improve the removal efficiency of sulfuric acid aerosol. Experimental results indicate that the critical supersaturation degree of the sulfuric acid aerosol is found in inverse proportion to their sizes and the removal efficiency of sulfuric acid aerosol could be increased by about 20%. The theoretical and the actual condensable water mass values have been also studied in detail. The mass of condensed water produced by the experiment system is 0.0440 kg/(Nm3·h) as the temperature drop is 5°С, and the most suitable temperature drop is about 1∼2°С for water scarce area. High temperature and humidity reveal a huge potential to recycling water.

Download Full-text

REVERE No. 430

Alloy Digest ◽

10.31399/asm.ad.cu0063 ◽

1958 ◽

Vol 7 (5) ◽

Keyword(s):

Corrosion Resistance ◽

Sulfuric Acid ◽

High Temperature ◽

Physical Properties ◽

High Resistance ◽

High Strength ◽

Heat Treating ◽

Aluminum Bronze ◽

Temperature Performance ◽

Excellent Corrosion Resistance

Abstract REVERE No. 430 is an aluminum bronze having high strength, excellent corrosion resistance, and high resistance to sulfuric acid. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-63. Producer or source: Revere Copper and Brass Inc..

Download Full-text

TIMETAL 35A

Alloy Digest ◽

10.31399/asm.ad.ti0122 ◽

2001 ◽

Vol 50 (11) ◽

Keyword(s):

Corrosion Resistance ◽

Sulfuric Acid ◽

High Temperature ◽

Nitric Acid ◽

Physical Properties ◽

Chlorine Dioxide ◽

Heat Treating ◽

Bend Strength ◽

Temperature Performance ◽

Sodium And Potassium

Abstract Titanium shows outstanding resistance to seawater and marine atmospheres. It is also resistant to attack by hot metallic chloride solutions, sodium and potassium hypochlorite, and chlorine dioxide. The metal is resistant to attack by hot nitric acid at concentrations up to 80% and is not attacked by sulfuric acid. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and bend strength as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: TI-122. Producer or source: Timet.

Download Full-text

Experimental results of the Li-Pb-Pt system obtained by the high temperature drop calorimetry

Journal of Molecular Liquids ◽

10.1016/j.molliq.2021.115824 ◽

2021 ◽

pp. 115824

Author(s):

S. Terlicka ◽

A. Dębski ◽

W. Gąsior ◽

A. Fornalczyk ◽

M. Saternus

Keyword(s):

High Temperature ◽

Temperature Drop ◽

Experimental Results ◽

Drop Calorimetry

Download Full-text

High-Temperature Raman Investigation of Concentrated Sulfuric Acid Mixtures: Measurement of H-Bond ΔHValues between H3O+or H5O2+and HSO4-

The Journal of Physical Chemistry A ◽

10.1021/jp021436z ◽

2002 ◽

Vol 106 (43) ◽

pp. 10162-10173 ◽

Cited By ~ 15

Author(s):

G. E. Walrafen ◽

W.-H. Yang ◽

Y. C. Chu

Keyword(s):

Sulfuric Acid ◽

High Temperature ◽

Concentrated Sulfuric Acid

Download Full-text

Octahedral–tetrahedral equilibria in aqueous cobalt(II) solutions at high temperatures

Canadian Journal of Chemistry ◽

10.1139/v80-223 ◽

1980 ◽

Vol 58 (14) ◽

pp. 1418-1426 ◽

Cited By ~ 31

Author(s):

Thomas Wilson Swaddle ◽

Leonard Fabes

Keyword(s):

Sulfuric Acid ◽

High Temperature ◽

Absorption Band ◽

High Temperatures ◽

Intensity Ratio ◽

Hydrogen Sulfate ◽

Sulfate Ion ◽

Acidic Media ◽

Visible Absorption ◽

Upper Limits

Evidence is presented to indicate that aqueous Co2+ exists as the hexaaquo-ion in equilibrium with minor amounts (upper limits 0.08% at 298 K, 7% at 625 K, at 16–25 MPa) of tetraaquocobalt(II), with ΔH ~ +17 kJ mol−1. The single visible absorption band of the supposed Co(H2O)42+ has maxima at 552 nm and 486 nm in the intensity ratio 2:1. Hydrogen sulfate ion (up to 0.5 M at least) does not complex Co2+(aq) detectably in acidic media, 290–625 K, and sulfuric acid therefore holds promise as a non-complexing strong monobasic acid for high-temperature aqueous studies. In water containing 2.0 M or more Cl−, the tetrahedral form of cobalt(II) is CoCl42−, ΔH for the octahedral → tetrahedral equilibrium being +62 kJ mol−1; forCoBr42−, the corresponding ΔH is +70 kJ mol−1, the greater endothermicity accounting entirely for the lower stability relative to CoCl42−.

Download Full-text