Waste Gas End-of-Pipe Treatment Techniques in Italian IPPC Chemical Plants

2019 ◽  
pp. 250-267
Author(s):  
Gaetano Battistella ◽  
Giuseppe Di Marco ◽  
Carlo Carlucci ◽  
Raffaella Manuzzi ◽  
Federica Bonaiuti ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Inorganic Compounds ◽  
Emission Control ◽  
Operating Conditions ◽  
Chemical Plants ◽  
Waste Gas ◽  
Treatment Techniques ◽  
Emission Regulations ◽  
Control Technologies ◽  
Bat Conclusions

Due to more stringent emission regulations, very efficient emission control technologies are required adopting national IPPC permits based on BAT conclusions. Some abatement techniques are operating inside IPPC plants based in Italy. This chapter includes the results of a screening of Italian IPPC plants, trying to highlight operating conditions of abatement devices and possible already existing improvements for several compounds removal. The abatement techniques analyzed operate mainly on VOC content reduction or on inorganic compounds abatement. ISPRA experience has allowed to analyze different operative conditions, related with abatement techniques and their application in IPPC permitted plants. The results of this analysis suggest a possible reconsideration and new assessment for some end-of-pipe devices in order to find other, better-defined operational contexts, different from Italian provisions and an evaluation of current operational performances of the devices, in order to improve their environmental conditions consistently with BAT application.

Waste Gas End-of-Pipe Treatment Techniques in Italian IPPC Chemical Plants

2018 ◽  
pp. 3156-3171
Author(s):  
Gaetano Battistella ◽  
Giuseppe Di Marco ◽  
Carlo Carlucci ◽  
Raffaella Manuzzi ◽  
Federica Bonaiuti ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Inorganic Compounds ◽  
Emission Control ◽  
Operating Conditions ◽  
Chemical Plants ◽  
Waste Gas ◽  
Treatment Techniques ◽  
Emission Regulations ◽  
Control Technologies ◽  
Bat Conclusions

Due to more stringent emission regulations, very efficient emission control technologies are required adopting National IPPC Permits based on BAT Conclusions. Some abatement techniques are operating inside IPPC plants based in Italy. This paper include the results of a screening of Italian IPPC Plants up to day, trying to highlight operating conditions of abatement devices and possible already existing improvements for several compounds removal. The abatement techniques analyzed operate mainly on VOC content reduction or on inorganic compounds abatement. ISPRA experience has allowed to analyze different operative conditions, related with abatement techniques and their application in IPPC permitted plants. The results of this analysis allow to suggest a possible reconsideration and new assessment for some end-of-pipe devices, in order to find other better defined operational contexts, different from actually Italian provisions and an evaluation of current operational performances of the devices, in order to improve their environmental conditions, consistently with BAT application.

Performance and Durability Assessment of Two Emission Control Technologies Installed on a Legacy High-Speed Marine Diesel Engine

2015 ◽  
Author(s):  
Jonathan DeHart ◽  
Robert Russell ◽  
John Storey ◽  
Michael Kass ◽  
Richard DeCorso ◽  
...  
Keyword(s):  
High Speed ◽  
Alternative Fuels ◽  
Emission Control ◽  
Cost Effective ◽  
Operating Conditions ◽  
Marine Engines ◽  
Marine Diesel ◽  
Durability Assessment ◽  
Reduce Emissions ◽  
Control Technologies

The Navy pilot program investigated cost-effective technologies to reduce emissions from legacy marine engines. High-speed, high-population engine models in both commercial and Navy fleets were targeted. Emission reductions were sought that would minimize fuel penalty as well as installation and operating costs. Navy operating conditions and fuels limited options. Five highly rated technologies were laboratory tested on a Detroit Diesel Corporation 12V-71N engine using two military and three alternative fuels. Two control technologies were then shipboard tested (baseline, 1-year early degradation, and 9-year late-life). Conclusions and recommendations are provided to inform application of these and similar emission control technologies within both commercial and Navy fleets.

Progress on Denitration and Desulfuration Technologies for Marine Diesel Engines

2015 ◽  
Vol 713-715 ◽  
pp. 51-56
Author(s):  
Ya Qiong Liu ◽  
Jia Zhen Du ◽  
Pi Qiang Tan ◽  
Ai Min Du
Keyword(s):  
Diesel Engines ◽  
Emission Control ◽  
Pollutant Emissions ◽  
Exhaust Emission ◽  
Formation Mechanisms ◽  
Emission Regulations ◽  
Marine Diesel ◽  
Practical Performance ◽  
Control Technologies ◽  
Future Technologies

Exhaust emission regulations issued by International Maritime Organization (IMO) for marine diesel engines are given and formation mechanisms for several pollutant emissions are introduced. Main denitration and desulfuration technologies for reducing NOx and SOx emissions are seperately summarized. In addition, working mechanism of different emission control technologies and their applications on marine diesel engines are introduced. These different emission control technologies are analyzed by evaluating conversion efficiency, economy and practical performance, and existed problems and future technologies are given. A Combination of different denitration and desulfuration technologies is a inevitable trend for emission reduction of marine diesel engines.

Removal of trichloroethylene from waste gases via the peroxone process

2003 ◽  
Vol 48 (3) ◽  
pp. 65-72 ◽  
Author(s):  
K. Van Craeynest ◽  
J. Dewulf ◽  
S. Vandeburie ◽  
H. Van Langenhove
Keyword(s):  
Hydrogen Peroxide ◽  
Bubble Column ◽  
Operating Conditions ◽  
Chlorinated Organic Compounds ◽  
Gas Treatment ◽  
Waste Gas ◽  
Treatment Techniques ◽  
Carbon Adsorption ◽  
Waste Gas Treatment ◽  
Chlorinated Organic

In dealing with chlorinated organic compounds in waste gases, traditional treatment techniques show some severe shortcomings. Thermal oxidation may lead to the formation of dioxins, active carbon adsorption does not degrade the pollutants and biotechnological treatment is difficult since microorganisms do not always possess efficient degradation pathways for these compounds. These drawbacks explain the growing interest of the waste gas treatment sector for Advanced Oxidation Processes (AOPs) which were initially developed as water treatment techniques. AOPs generate highly reactive hydroxyl radicals that efficiently oxidise organic pollutants. In the peroxone process, this is done by a combination of ozone and hydrogen peroxide. In this work, the peroxone process is applied in an oxidative scrubber for the removal of trichloroethylene (TCE). Rapid oxidation of absorbed TCE in the liquid phase enhances TCE absorption. Practically, a gas stream contaminated with TCE is mixed with an ozone loaded gas stream. The mixture is led through a bubble column that is fed with a buffered hydrogen peroxide solution. The effect of different process parameters (flow rates, buffer concentration, pH, hydrogen peroxide/ozone dosage ratio, TCE dosage) on TCE removal was investigated. Depending on the operating conditions, removal efficiencies up to 98% could be attained.

scholarly journals Postsynthetic treatment of nickel–iron layered double hydroxides for the optimum catalysis of the oxygen evolution reaction

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Daire Tyndall ◽  
Sonia Jaskaniec ◽  
Brian Shortall ◽  
Ahin Roy ◽  
Lee Gannon ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Size Control ◽  
Operating Conditions ◽  
Nickel Iron ◽  
Treatment Techniques ◽  
Site Density ◽  
Synthetic Approaches ◽  
Double Hydroxide ◽  
Double Hydroxides

AbstractNickel–iron-layered double hydroxide (NiFe LDH) platelets with high morphological regularity and submicrometre lateral dimensions were synthesized using a homogeneous precipitation technique for highly efficient catalysis of the oxygen evolution reaction (OER). Considering edge sites are the point of activity, efforts were made to control platelet size within the synthesized dispersions. The goal is to controllably isolate and characterize size-reduced NiFe LDH particles. Synthetic approaches for size control of NiFe LDH platelets have not been transferable based on published work with other LDH materials and for that reason, we instead use postsynthetic treatment techniques to improve edge-site density. In the end, size-reduced NiFe LDH/single-wall carbon nanotube (SWCNT) composites allowed to further reduce the OER overpotential to 237 ± 7 mV (<L> = 0.16 ± 0.01 μm, 20 wt% SWCNT), which is one of the best values reported to date. This approach as well improved the long-term activity of the catalyst in operating conditions.

Oxidative Potential of Semi-Volatile and Non Volatile Particulate Matter (PM) from Heavy-Duty Vehicles Retrofitted with Emission Control Technologies

2009 ◽  
Vol 43 (10) ◽  
pp. 3905-3912 ◽  
Author(s):  
Subhasis Biswas ◽  
Vishal Verma ◽  
James J. Schauer ◽  
Flemming R. Cassee ◽  
Arthur K. Cho ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Emission Control ◽  
Heavy Duty ◽  
Oxidative Potential ◽  
Control Technologies ◽  
Heavy Duty Vehicles

scholarly journals Experience curves for power plant emission control technologies

2004 ◽  
Vol 2 (1/2) ◽  
pp. 52 ◽  
Author(s):  
Edward S. Rubin ◽  
Sonia Yeh ◽  
David A. Hounshell ◽  
Margaret R. Taylor
Keyword(s):  
Power Plant ◽  
Emission Control ◽  
Control Technologies ◽  
Experience Curves

scholarly journals Optimum fuzzy based approach to improve the instrument’s performance affected by environmental conditions

2013 ◽  
Vol 10 (2) ◽  
pp. 309-318
Author(s):  
Avnesh Verma ◽  
Tiwari Anand
Keyword(s):  
Set Theory ◽  
Fuzzy Set ◽  
Environmental Conditions ◽  
Fuzzy Set Theory ◽  
Operating Conditions ◽  
Mathematical Tool ◽  
Optimal Operating ◽  
Independent Variables ◽  
Humidity Index ◽  
Two Independent Variables

The performance of instrument has been analyzed, considering the ideal conditions and results which have been obtained when the instrument is subjected to diversified combination of environmental conditions. A peerless analysis has been carried out of these environmental conditions using 'fuzzy set theory' as a mathematical tool. The results showed how the use of fuzzy set theory is adequate to analyze environmental conditions and is able to suggest the optimal operating conditions for performance of the instrument. In this analysis two independent variables temperature and relative humidity have been used, and based on these two independent variables a third dependent variable was defined namely temperature humidity index (THI). Based on THI, a set of fuzzy rules were established considering the influence of both independent variables. The results obtained without fuzzy experimentation according to the specification of instrument and results obtained with fuzzy analysis shown were quite comparable. The results obtained after fuzzification explicitly show that the operating instrument?s accuracy can be predicted by comparing with the THI zone and at the same time this research gives an insight for selection of nearest optimal operating condition for normal working of the instrument. It can be summarized that the abrupt variation in independent variables can make the instrument unstable and the fuzzy based approach is helpful in improving the overall instrument performance.

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