Experimental investigation and simulation of the chemical absorption in a packed column for the system NH3–CO2–H2S–NaOH–H2O

Brettschneider, O.; Thiele, R.; Faber, Richard; Thielert, Holger; Woźny, G.

doi:10.1016/s1383-5866(03)00165-5

Cited by 64 publications

(38 citation statements)

References 21 publications

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“…To avoid this unwanted effect of Cu(II) on 13 C NMR analysis, after the dehydration experiments were completed, the copper catalyst was precipitated with Na 2 S and the reaction mixtures were separated from CuS by extraction either with CDCl 3 or D 2 O and the solutions analysed by 13 C NMR spectroscopy. [53,54]: the latter equilibrium should be right hand shifted and the reaction rate should be substantially increased at high temperature. Moreover, Reaction (2) is an oversimplification of the several equilibria occurring.…”

Section: C Nmr Spectroscopymentioning

confidence: 99%

Carbon dioxide uptake as ammonia and amine carbamates and their efficient conversion into urea and 1,3-disubstituted ureas

Barzagli

Mani

Peruzzini

2016

Journal of CO2 Utilization

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Section: C Nmr Spectroscopymentioning

confidence: 99%

Carbon dioxide uptake as ammonia and amine carbamates and their efficient conversion into urea and 1,3-disubstituted ureas

Barzagli

Mani

Peruzzini

2016

Journal of CO2 Utilization

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“…The best H 2 S removal efficiency by pH of 11-13 was reported by Jian G. Lua et al 30) and Brettschneider et al 31) .…”

Section: Discussionmentioning

confidence: 85%

“…Generally, the venturi has a low to moderate removal efficiency for H 2 S that mainly relates to its low solubility. The effectiveness of the packed scrubber for removal of H 2 S has been proven by several studies [28][29][30][31][32] . The alkali mixtures of NaOH and NaOcl as absorption liquid has good efficiency for H 2 S removal in a packed scrubber 4) .…”

Section: Discussionmentioning

confidence: 99%

Application of Local Exhaust Ventilation System and Integrated Collectors for Control of Air Pollutants in Mining Company

Shahna

Farasati

2012

Ind Health

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Abstact: Local exhaust ventilation (LEV) systems and integrated collectors were designed and implemented in a mining company in order to control emitted air pollutant from furnaces. The LEV was designed for capture and transition of air pollutants emitted from furnaces to the integrated collectors. The integrated collectors including four high efficiency Stairmand model cyclones for control of particulate matter, a venturi scrubber for control of the fine particles, SO 2 and a part of h 2 S to follow them, and a packed scrubber for treatment of the residual h 2 S and So 2 were designed. Pollutants concentration were measured to determine system effectiveness. The results showed that the effectiveness of LEV for reducing workplace pollution is 91.83%, 96.32% and 83.67% for dust, So 2 and h 2 S, respectively. Average removal efficiency of particles by combination of cyclone and venturi scrubber was 98.72%. Average removal efficiency of SO 2 and h 2 S were 95.85% and 47.13% for the venturi scrubber and 68.45% and 92.7% for the packed bed scrubber. The average removal efficiency of SO 2 and h 2 S were increased to 99.1% and 95.95% by the combination of venturi and packed bed scrubbers. According to the results, integrated collectors are a good air pollution control option for industries with economic constraints and ancient technologies.

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“…Parameter variations can be performed to investigate the sensitivity of the performance to uncertain variables. 22,23 The main operation units are absorption, distillation, and flash distillation.…”

Section: Simulation and Experimental Methods Simulationmentioning

confidence: 99%

Green process for methacrolein separation with ionic liquids in the production of methyl methacrylate

Yan

Diao

et al. 2010

AIChE Journal

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Separation of methacrolein (MAL) is a critical technique for the production of methyl methacrylate, which is an important raw material for the preparation of acrylic resins applied in a variety of end-uses. In this work, an azeotropic distillation process and an ionic liquid (IL) green process were developed for the separation of MAL with BmimBF 4 . The two processes were simulated with Aspen plus. The simulated results are in good agreement with the experimental results which were attained in a pilot plant. Also the economic and green degree analysis of these two processes was investigated. When compared with the azeotropic distillation process, the IL green process exhibits economic superiority and green degree superiority.

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Experimental investigation and simulation of the chemical absorption in a packed column for the system NH3–CO2–H2S–NaOH–H2O

Cited by 64 publications

References 21 publications

Carbon dioxide uptake as ammonia and amine carbamates and their efficient conversion into urea and 1,3-disubstituted ureas

Carbon dioxide uptake as ammonia and amine carbamates and their efficient conversion into urea and 1,3-disubstituted ureas

Application of Local Exhaust Ventilation System and Integrated Collectors for Control of Air Pollutants in Mining Company

Green process for methacrolein separation with ionic liquids in the production of methyl methacrylate

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