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Modeling exhaust gas pollution abatement: Part I — single hydrocarbon propylene

Sanchita Chauhan, V.K. Srivastava
2008 Computers and Mathematics with Applications  
The proposed model considers both gaseous as well as solid phase reactions of only one gas propylene that could possibly be occurring in the converter channels.  ...  The one-dimensional models for catalytic converters are used to account for the reduction of pollutants like hydrocarbons (HC), carbon monoxide (CO) and nitric oxide (NO).  ...  Kinetic mechanism Propylene being a fast oxidizing hydrocarbon is considered.  ... 
doi:10.1016/j.camwa.2005.09.007 fatcat:o5xgkrc2lvfnzitg3lldfaeysy

Detailed surface reaction mechanism for Pt-catalyzed abatement of automotive exhaust gases

J. Koop, O. Deutschmann
2009 Applied Catalysis B: Environmental  
Furthermore, the model is also applied for the simulation of emissions of hydrocarbons, CO, and NO from a gasoline engine (stoichiometric exhaust gas) in a dynamic engine test bench. ß  ...  The model is evaluated by comparison with data derived from isothermal laboratory experiments in a flat bed reactor with platinum-coated monoliths using synthetic lean/rich cycling exhaust gas mixtures  ...  (FVV) for the financial support and Umicore (formerly Delphi Catalyst) for providing the model catalysts.  ... 
doi:10.1016/j.apcatb.2009.05.006 fatcat:u73xdmevozb4hpp3ufnae377wu

Utilization of Volatile Organic Compounds as an Alternative for Destructive Abatement

Satu Ojala, Niina Koivikko, Tiina Laitinen, Anass Mouammine, Prem Seelam, Said Laassiri, Kaisu Ainassaari, Rachid Brahmi, Riitta Keiski
2015 Catalysts  
gas, landfill gas (LFG), coal bed methane (CBM), hydrocarbon processes, agro-farming, mining and metal industries [29,30].  ...  Catalytic Utilization of Methane Emissions From Methane to Syngas and Hydrogen Methane is the simplest form of hydrocarbon and organic gas.  ...  Catalysis has been used already for around 30 years in emissions abatement, e.g., in SOx, VOCs, automotive exhaust gas purification via converting them to less harmful compounds [347] .  ... 
doi:10.3390/catal5031092 fatcat:uocqs3znjvh6lmn7kbcv6avxe4

Loading and Aging Effects in Exhaust Gas After-Treatment Catalysts with Pt As Active Component

Willi Boll, Steffen Tischer, Olaf Deutschmann
2010 Industrial & Engineering Chemistry Research  
Pollutant conversion is numerically investigated in an isothermal flat bed reactor using varying lean exhaust-gas mixtures and temperatures.  ...  Abatement of pollutant emissions over platinum-containing catalytic converters of lean operated engines is studied.  ...  ., and appreciate the efforts and kindness of Umicore AG&Co.KG for preparation and providing model catalysts.  ... 
doi:10.1021/ie100516j fatcat:uzyk3efkw5cxbgt5ajo4o4qc5i

Air Pollution and Man's Health: In Great Britain

Peter C. G. Isaac
1953 Public Health Reports (1896-1970)  
These, too, result from hydrocarbon reactions in the air. The vapor or gas phase of smog is predominantly hydrocarbon.  ...  The first smoke abatement law was passed in 1273 by Edward I, who prohibited the use of coal as being prejudicial to human lhealth.  ... 
doi:10.2307/4588576 pmid:13089018 pmcid:PMC2024105 fatcat:7ngpphunyvgdlbzpelwwsinntq

Applications and Preparation Methods of Copper Chromite Catalysts: A Review

Ram Prasad, Pratichi Singh
2011 Bulletin of Chemical Reaction Engineering & Catalysis  
catalyses numerous processes of commercial importance and national program related to defence and space research but also finds applications in the most concerned problem worldwide i.e. environmental pollution  ...  It can be used in the pollution abatement as the catalyst to remove aqueous organic wastes [7] , volatile organic compound (VOC) [8] and vehicular primary emissions [9] such as CO, unburned hydrocarbon  ...  Since concentrations of CO and hydrocarbons are lower and that of O2 is higher in diesel exhausts than in gasoline-engine exhausts, three-way catalysts cannot remove NOx from the diesel exhausts [285]  ... 
doi:10.9767/bcrec.6.2.829.63-113 fatcat:fk7mp5lkvzc2nbl5f4mfqpjeza

VOC Characteristics and Their Source Apportionment in the Yangtze River Delta Region during the G20 Summit

Cheng Chen, Lingrui Wang, Yanhong Qin, Yunjiang Zhang, Shanshan Zheng, Yifan Yang, Shiguang Jin, Xiaoxiao Yang
2021 Atmosphere  
Synoptic conditions and airmass transport played an important role in the transport and accumulation of VOCs and other pollutants, which affected the control effects.  ...  Using the positive matrix factorization (PMF) method in source apportionment, five factors were identified, namely, vehicle exhaust (19.66–31.47%), plants (5.59–17.07%), industrial emissions (13.14–33.82%  ...  Modeling Methodology 2.4.1.  ... 
doi:10.3390/atmos12070928 doaj:134f4c755a2348eda0df0adef64fab83 fatcat:fc4ikczjbfakfkkbwgf4lxaz54

Measurement report: Aircraft observations of ozone, nitrogen oxides, and volatile organic compounds over Hebei Province, China

Sarah E. Benish, Hao He, Xinrong Ren, Sandra J. Roberts, Ross J. Salawitch, Zhanqing Li, Fei Wang, Yuying Wang, Fang Zhang, Min Shao, Sihua Lu, Russell R. Dickerson
2020 Atmospheric Chemistry and Physics  
, and i-pentane playing significant roles in the aloft production of O3 in this region.  ...  In the PBL below 500 m, box model calculations constrained by measured precursors indicate the peak rate of mean O3 production was ∼ 7 ppbv h−1.  ...  m/p-Xylene 1.87 6.3 2-Methylheptane 0.09 7.9 Propylene 1.72 5.8 Isoprene 0.08 7.2 i-Pentane 1.47 5.0 i-Pentane 0.06 5.1 2,2,4-Trimethylpentane 1.30 4.4 m/p-Xylene 0.05 4.1 2-Methylheptane  ... 
doi:10.5194/acp-20-14523-2020 fatcat:d45tpwalv5f7pg2vhixggvsutm

Global Kinetics for Platinum Diesel Oxidation Catalysts

Chaitanya S. Sampara, Edward J. Bissett, Matthew Chmielewski, Dennis Assanis
2007 Industrial & Engineering Chemistry Research  
These models employ a 'film approach', which assumes that the monolith can be modeled as a single channel.  ...  mole fraction of species i x g,i mole fraction of species i in bulk gas phase x i,r reference mole-fraction of species i x s,i mole fraction of species i in gas at catalyst surface z axial position  ...  Full Scale 1D Adiabatic Reactor Model The basic governing equations required to model both adsorption and oxidation are given below.  ... 
doi:10.1021/ie070642w fatcat:rdv7ywti3vcsbf37neftzr2p4e

Aftertreatment Technologies for Diesel Engines: An Overview of the Combined Systems

Ferenc Martinovic, Lidia Castoldi, Fabio Alessandro Deorsola
2021 Catalysts  
Thus, an after-treatment device for a diesel vehicle requires the use of an integrated catalyst technology for a reduction in the individual emissions of exhaust gas.  ...  The abatement of the pollutants deriving from diesel engines in the vehicle sector still represents an interesting scientific and technological challenge due to increasingly limiting regulations.  ...  Introduction Air pollution is the result of a combustion process of hydrocarbon fuels that besides CO 2 and H 2 O produces a large variety of other pollutants.  ... 
doi:10.3390/catal11060653 fatcat:xgvn475hcfdjdd6zegjvs2y5fa

Microwaves and Heterogeneous Catalysis: A Review on Selected Catalytic Processes

Vincenzo Palma, Daniela Barba, Marta Cortese, Marco Martino, Simona Renda, Eugenio Meloni
2020 Catalysts  
sintering of materials by means of microwave radiation has been used for more than 20 years, while, future challenges will be, among others, the development of processes that achieve lower greenhouse gas  ...  The review is divided into three principal topics: (i) introduction to microwave chemistry and microwave materials processing; (ii) description of the loss mechanisms and microwave-specific effects in  ...  Another promising method for the simultaneous abatement of SO2 and NOx is electron beam (EB) flue gas treatment, that consists of irradiating with fast electrons the exhaust gases, producing ions and radicals  ... 
doi:10.3390/catal10020246 fatcat:oqosobfmjfhpvdeevs4fx5uf4q

Catalytic Fuel Combustion in Honeycomb Monolith Reactors [chapter]

2005 Structured Catalysts and Reactors  
Heck, R.M., Farrauto, R.J., and Gulati, S.T., Carbon monoxide and hydrocarbon abatement from gas turbines, in Catalytic Air Pollution Control, 2nd ed., Wiley-Interscience, New York, 2002, pp. 334-344.  ...  The fourth part is dedicated to catalyst design and preparation. Part I deals with monolithic catalysts.  ... 
doi:10.1201/9781420028003-12 fatcat:rrv6cbznenerbjetw3uhc5wi3m

Development of Pharmaceutical VOCs Elimination by Catalytic Processes in China

Lilong Zhou, Chen Ma, Jonathan Horlyck, Runjing Liu, Jimmy Yun
2020 Catalysts  
The waste gas, with a high VOC concentration, was pretreated, combined with exhaust gas, and washed with an alkali solution.  ...  J.H. has improved the English writing of the whole paper and written parts of photocatalysis parts.  ... 
doi:10.3390/catal10060668 fatcat:5qs4o2ei35dbzeifutyam54u3e

Separation of VOCs from N2using poly(ether block amide) membranes

Li Liu, Amit Chakma, Xianshe Feng, Darren Lawless
2009 Canadian Journal of Chemical Engineering  
Propylene separation from nitrogen, which is relevant to the recovery of propylene from the de-gassing off-gas during polypropylene manufacturing, was carried out using flat PEBA composite membranes formed  ...  Semi-empirical correlations were developed to relate the permeance of a component in the mixture to the pressures and compositions of the gas on both sides of I wish to carry my sincere appreciation to  ...  In Henis and Tripodi's model, gas first permeates through the coating layer, and then splits into two parts: one through the polymer matrix and the other through the pores on the skin layer of the substrate  ... 
doi:10.1002/cjce.20181 fatcat:ebljlyempredzey6inezjhngti

Mine emissions reduction installations

Piotr Ostrowski, Marek Pronobis, Leszek Remiorz
2015 Applied Thermal Engineering  
by removal of pollutants from exhaust gases (secondary measures -abatement techniques).  ...  Purge burner boilers are designed as single fuel systems (only for gas or light oil) and as double fuel systems i.e. for gas and light oil, so called universal burners.  ... 
doi:10.1016/j.applthermaleng.2015.03.061 fatcat:z3up2k43pbapdkaumhiy6s3nbi
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