Reactive Distillation rau Biodiesel Ntau Lawm

Reactive Distillation rau Biodiesel Ntau Lawm

Reactive distillation (RD) yog cov khoom siv tshuaj lom neeg ua haujlwm uas tshuaj lom neeg thiab cov khoom sib cais tshwm sim ib zaug. Nws yog ib qho zoo tshaj plaws rau kev siv theem pib ntawm cov hluav taws xob thiab cov chav sib cais.

Kev sib thooj distillation yog ib qho txheej txheem tshuaj lom neeg nyob rau lub sijhawm uas cov tshuaj tiv thaiv ua rau nws yooj yim dua. Cov txheej txheem RD tshem tawm cov tshuaj tua kab mob los ntawm cov cheeb tsam tshuaj tiv thaiv, yog li tiv thaiv qhov tshwm sim los ntawm kev hloov, thiab kev txhim kho cov nqi kwv yees tag nrho.

Ib qho RD system muaj ntau qhov chaw nrog qhib ntawm ib qho mus rau lwm qhov. Cov khoom xyaw yog ntxiv rau thawj chamber, thiab thaum sib xyaw nkag mus rau txhua lub rooj sib txig sib luag, cov tshuaj tiv thaiv zuj zus kom dhau los ntawm lub xeem chamber, cov tshuaj tiv thaiv tiav. Ob lub thawv ntim khoom thiab tais hauv txhua daim ntawv yuav siv tau rau daim ntawv thov RD; Txawm li cas los xij, cov tais hauv txhua lub sij hawm zoo dua rau homogeneous cov tshuaj tiv thaiv kab mob vim qhov dej tuav ntau dua thiab lub sij hawm ntev zog.

Reactive distillation systems tsis tau muab coj mus muag ua biodiesel vim hais tias RD nyhav dhau los ua ib txoj haujlwm nyuaj. Txawm li cas los xij, qhov tsis yooj yim yog tsis tshua muaj me me thaum thov kom biodiesel ntau lawm vim ob peb yam. Qhov txawv ntawm qhov npau npau sov ntawm methanol thiab fatty acid esters (biodiesel) yog loj heev uas qhov sib cais ntawm cov dej no ob qho yooj yim heev. Vim tias cov tshuaj tiv thaiv no tshwm sim hauv cov dej ua kua nkaus xwb, ces lub sij hawm rov qab tsim los ntawm tag nrho cov dej tuav thiab qhov ntsuas ntawm cov reactants.

Raws li kev tshawb fawb hauv University of Idaho kev txhawb nqa los ntawm National Institute of Advanced Transportation Technologies (NIATT) (Nws thiab lwm tus, 2005, 2006, 2007), RD reactor system tau qhia peb qhov zoo tshaj qhov kev sib koom ua ke thiab kev sib nruam khiav nrawm cov txheej txheem: 1) lub sij hawm luv luv (10 mus rau 15 min) thiab siab dua kev tsim tawm (7 rau 9 gallons ib nkas loos reactor ntim ib teev twg), uas yog cov khoom txaus siab hauv cov khw muag khoom; 2) txo qis dej ntau dhau (kwv yees li 3.5: 1 molar), uas ua rau kom txo qis dej cawv rov qab thiab cov nqi khiav lag luam; thiab 3) qis dua cov nuj nqis vim tias nws tsawg dua thiab txo cov khoom siv cawv rov qab.