Document OEZg3VDbj8nrJ42pm8z6L4knQ

PRELIMINARY COST ESTIMATE MONSANTO THERMAL DEGRADATION PROPERTIES OF 1,2,4-TRICHLOROBENZENE May 10, 1984 1. Thermal Decomposition Profiles and Product Identification for 1,2,4-TCBz 1.1 Pyrolysis 1.2 Oxygen starved 1.3 Oxidation 2. Pyrolysis Kinetics 2.1 Reaction Order determination 2.2 Determination of Pyrolysis rate constants, activation energy, and Arrhenius coefficient 3. Oxidation Kinetics 3.1 Reaction order determination w.r.t. 1,2,4-TCBa 3.2 Reaction order determination w.r.t. oxygen 3.3 Determination of oxidation rate constants, activation energy, and Arrhenius coefficient $39,985 $18,960 $21,443 r' Total $80,388 HONS 213854 ^abilities Tha laboratory approach is par ticularly economical in that the guesswork and complexity involved tem uses an in-line high-pertormance multifunctional gas chroma tograph. With both laboratory sys /iCtneretlon and ^Thermal Degradation in a trial burn are significantly re duced. thus greatly decreasing the probability of having to conduct a second burn. Furthermore, Environ tems. toxic organic substances can be studied and products ol decom position identified and quantified. These systems are designed so lhat Tha success of the Kapone and mental Protection Agency regula the major thermal decomposition othar relsled tharmal degradation tions require the identification of the variables -- exposure temperature, studies resulted in the establish principle organic hazardous consti composition of atmosphere, mean ment of the Environmental Chemis tuents. those components of the residence time, residence time try Laborstory at (ha Unlvarlity of weste streams that are most highly distribution, and reactor internal Oayton Research Institute. Using concantrated. toxic, and thermally preaaure -- can be varied and axstata-ol-the-art equipmant davai- stable. Such identification usually penmentaiiy evaluated oped by Rasaarch mstituta person requires a costly chemical analysis Although these relatively aophisnel. tharmai dagradation data haa of the waste sample. However, by Heated systems are the workhorses bean generstad on a ranga of lam- first subjecting the sample to high for the Environmental Chemiatry plaa from pasticidaa to complex temperatures, the most stable com Laboratory, other thermal systems Industrial mixturasand chlorometh- ponents can be identified, thus are currently being developed to anas to dlbenzo-p-dioxins. reducing the required chemical address more routine thermal Tha Environmental Chemistry analysis from hundreds of com degradation problems. Research Laboratory containa two proven pounds to less than a dozen. Their grade systema being developed can Instrumentation systems that deter* identity can be determined on the be used to address very speclfleand mine tha high-temperature tharmai Thermal Decomposition Analysis complex questionQMociated wfth degradation proparties of virtulliy any organic substance. The Ther mal Decomposition Analytical System (TDAS) consists of s con System (TDAS} without additional analysis. Instrumentation Development ,incineration and, Inermat degha- <TM"Chemical Analysts trolled high-temperature decompo The proficiency of the Environ Tha Environmental ChMifry> sition unit with a dedicated in-line mental Sciences Group in ascer Laboratory contaMe several ays- LKB 20fl1 gas chromatography- taining thermal degradation pro tarns which aid fn the cMmictl mass spectrometar to measure des perties of organic compounds is the characterization of complex orge- truction efficiency and analyze pro result of innovative application of nic samples. The LKB 2091 gaa ducts of Incomplete combustion. atate-of-the-art technology from a chromatograph-mass spectrometer The Thermal Decomposition Unit- variety of technical disciplines. and the Viata 44 gas chromatogra Gas Chromatographic system Since f969. researchers in the phic systems art used lor surveying (TDU-GC) Is a similar thermal Group have designed and assem chemical analysis and identification decomposition unit, which uses a bled thermal instrumentation sys of principal organic hazardous high-resoiutlon capillary gas chro tems that are used to study the ther constituents and products of ln- matography system with cryogenic mal degradation properties of haz complata combustion in hazirdous capabilities to perform tha neces ardous wastes and other organic wait* asm plat. Othar gas chroma sary analyses Both systems allows materials. Initially, thermal analysis tographic. analytical, and research prediction of the temperature at systems were designed to obtain grade systems sre used to study which, for example. 99.99 par cent simultaneous analytical data on the specific problems in the analysis of of the parent compound has been thermal decomposition characteri vary complex systems. destroyed for a given set of inciner zation of polymeric organic sub Tha Environmental Science ator conditions. These systems can stances. As the Environmental Sci Groups' proficiency in routine and also be used to Identtfyvtftermally ences Groups' ability to design survey chemical analysis is comple stable products of IneomjNqta com thermal Instrumentation became mented by research activities in tha bustion which also may be hawrdous. known, requests grew tor the devel analysis of highly complex mixtures Thara are many advantages to opment of additional thermal sys of volatile organic compounds generating fundamental thermal tems that would determine tharmai Work being done in the Environ degradation data In the laboratory. decomposition properties of pesti mental Chemistry Laboratory in First, such tharmai dagradation ex cides. Industrial organic wastes, and cludes research experiments and periments are conducted safely, various environmentally sensitive methods development work with using microgram quantities of ihe organic materials. high-resolution gas chromato sample in a properly equipped lab in these thermal systems, high- graphic columns and associated oratory with an experienced staff. resolution gas chromatography |$ system component*, in addition lo Sacond, data generated in the lab the major technique used to analyze using gaa chromatographic tech oratory are much more precise and products or effluents. For example, niques to analyze hazardous or comprehensive than thermal degra the TDAS is a versatile system that ganic compounds of various types, dation data generated In field-scale incorporates a gas chromatograph- sophisticated techniques for the studlas. Third. In the laboratory, mass spectrometer-computer chemical analysis of jet fuels and tnermal degradation data can be ob downstream of a thermal decompo shale oil samples for the Air Forca tained quickly and economically. sition unit, while the TDU-GC sys re being developed. 7-- -- HONS 213855 ,cilities / Environmental Seianea* Labor* tori#* Th# activities of tha Environmanial Scianca* Group art par* formed In aavan different labora* loriaa which ara locatad within tha Eugene w. Kattaring Englnaaring and Raaaarch Laboratoriai. Thta building wai eomtructad in 1969 on tha Univ*r|ity of Oayton campul. and an annex built in 1976 addad laboratory and offic* apaca to tha Raaaarch ln*tituta a main facilltiaa. bringing tha total floor apaca in thla facility to approximately 56.000 aquara faat. in addition, tha Reaaareh inatituta occupiaa aiightiy mora than 56.000 square faat in othar building* of tha Unlvaraity. Tha aavan laboratorlaa of tha Environmaniat Scianeaa Group ara locatad in ona intarconnactad com plex and conatituta approximataly 2,100 aquara faat of floor apaca. Thraa of thaia laboratorlaa ara dadlcatad to conducting thermal dacompoaition atudiaa with apacial analytical inatrumantation that haa baan datignad and davaiopad at tha Unlvaraity of Oayton. Atao. thara I* an Environmanta) Chamiatry Laboratory and an Environmantai Englnaaring Laboratory that ara utad for a variaty of different tasks aaaoclatad with axpartmantat activitiaa. In addition, thara fa a laboratory that la davotad to ana lytical Inatrumantal raaaarch in tha flaldt of high raaoiutton gas chro matography and tharmai inatru mantation ayatam davaiopmant. Tha hub of thla laboratory comptax conaiata of a hazardous matariala handling faculty, which ia fully aquippad for dealing with toxic organic substances at It haa a mini mum of five itvela of containment. This hazardous materials handling lacillty enhances our capability to prepara and analyte highly toxtc organic aubataneaa. EQUIPMENT LIST Tharmai Oecempoaitlen Eculpmenl Tharmai Decomposition Analytical System' Thermal Decomposition Unii-Gas Chromatograph Packaped Thermal AeectO' Sytiam Analyses Eotfpanant LSK Medal 2091 GC-Maa* Speetrometar Vartan Modal 1*00 Qa* Chromaloprapn Vartan Modal 3400 0*S Chromaloprapn Vartan Modal 3700 |Modified) Vartan Modal vtata 44 (Modified) Tmeer Model aao (Mosi^aj^g) '' 9pecl*l Purpose Oeatoctera- . ' Tracer Model 310 and DW00lCO 'tupped Digital Vex ii/7S0(, Untvac 60/90*3 (Aooaaafbia) Digital PDP 11/04 *6 Vera#tec Printer * ~ *\; i Tektronix 4013 QrtpMce Terminal Tl Sllant 700 ASS Tarmlnal Muirrtui tNETMUmtTATtCM KSC4KN LAMMTQftr \ / TNCMW. KCOPPOSITtOR STUDIES (T90-0C LWOMTCXTI 7 7 \ ENVUtOSENTN. ENSINEERtK UKMTOET > WNP i TMESML teams mat STUDIES itmj (MoaxToevi ! ENVtROWCIITM. ototistrr lakmatort 11 -- TMESML KCaVOStTION STUDIES tprae lmomtomi noun SCALE. KW HONS 213656