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' A- r_ <br /> . �s.l :!4.IOii Li5c5 <br /> Fuel <br /> oils have ;or ilich Chrly ere speci'-icaily <br /> xorRuaLed. -uei oil -u be= 1 _s used alaast axei_�1ei�t nor iomesri <br /> �s - ` eneral �w ;apse cotfestic or <br /> fuel oil .=bar - w seo tr _= <br /> caamercial f-Llei Ln �3 .r-?e bu►'T�rs. iiuuner G as i used in <br /> cosaaexeial or industrial turner i.ssa_e='iops roz ec,;ti.nned rich <br /> prsheazing =abilities. _3umaa;s 5 and 6 ire .1sed " ;ti:.. =fts and <br /> hailers of utility pLwer plaars. ships, loeomocives. 1trallurgica1 <br /> oo_erasions and indus-i»i ?Ower ?iaat.: <br /> Diesel fuel is available in d_,ffiI Numbp= 1-D is used <br /> for engines in service requiring f;eque=r Seed and Load c:uages. <br /> 2lumber 2-D is used for engi-.es in ind+%st:rial a d heavy aobile s4tzrice <br /> while rm=ber 4-D is used in lou and medium speed engines (2242). <br /> 66.1,2 Composition <br /> - <br /> on <br /> The discussi_;,a of feel oil. in this chanter lazsei; 'acuses <br /> ed .�or=rion on residual fuel oils. which are <br /> diesel fuel. .= •= aftzr ramovai of the zppreci- <br /> r <br /> generall, defined as z;!7e product remain <br /> ahl.c q+satttitzes of the =ore ..1ati.le co=orents. `^ '_nciudad but <br /> anviro=ental fate data are rot 3peei.ficaily aadresse6. 2asidual fuel <br /> oils are ex�eczed to be extremely _Omplex _a composition. vit_`� higher <br /> concentrations of the many high molecular .,eight asphaltic compounds <br /> and i=puriLies aresen: is rhe original crude oils. Avhz-- data <br /> suggest sulfur values ranging from 0.18 to 4.3b� by weeiight: trace <br /> element data indicace that concentations aL maitY (184elements nary . one <br /> r <br /> or =oreThe <br /> orders of magni.cude. as shown in Table 6Smoiacular weighs <br /> environmental transport and transformation of the nigh <br /> organics is expected to be mini=al and is not addressed in detail. <br /> Diesel EUP-1 is usaaLly that f_actien of perroie= chat disci'-7s <br /> after keosene in the 200•C CO 400-C range. several comasrcio grades <br /> r <br /> of diesel fuels are obtained by blending various feestac <br /> dks ca achieve <br /> established spealfications. Dur- tc differences _:t feed stocks. <br /> r refining methods, and 3lendirg practices, he composition e= diesel <br /> :ariabie. <br /> Sul con_eaC has <br /> Fuel sa�ies is expectaa Co be highlY (once c b <br /> been- reported co vary by several orders or magnitude v- Y <br /> weight): similar 7aria�ion. Zava been doe•�Ented for a ;tu`wer ai •'ace <br /> elements, as shown in Table 56•'1 (=943). <br /> Diesel Fuel is predocuaantiy <br /> zydracasbons• Compositian by chemical class has been raportad co be <br /> approxim tely 64% aliphatic atiarocarbons (straight czod <br /> h a1L1n�tatie <br /> c-:cloalkanes?. i-2g aLew_ric <br /> hydrocarbons r. aad 115, <br /> oaatics sJS47). <br /> - Hydrocarbons. ncludln; �L::rlbecserfes had --3 -71$ <br /> other authors have repor=ed a somevham loves aliphat content �''-S4?). <br /> s,S discussed .n C:�ante- 64 (??.4? , pecroieuza dist'i'_ates •m3v cc;wain <br /> ^any ran•-hydrocarbon ;:o=orents In varrT=£ coneensrati.,n3- <br /> 5,•'R7 <br />