PURIFICATION OF METHANOL BY AZEOTROPIC DISTILLATION.pptx

8/17/2019 PURIFICATION OF METHANOL BY AZEOTROPIC DISTILLATION.pptx

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PURIFICATION OF METHANOLBY AZEOTROPIC DISTILLATION

MUHAMMAD IZWADI BIN ZAILANWAN MUHAMMAD MUQARRABIN BIN HAIRUL ANUAREH220


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Introduction

Mt!"no#$ "#%o &no'n "% (t!)# "#co!o#$ 'ood"#co!o#$ 'ood n"*!t!"$ (t!)# !)dr"t$ or 'ood%*irit%$ i% " c!(ic"# 'it! t! +or(u#" CH,OH-

Molar mass: .2-04 1(o# Formula: CH.OH

Boiling point: 43-5F 674-85C9

Density: 8:2 &1(; Melting point:


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An) o+ %=r"# *roc%%% >) '!ic! #i?uid (i@tur% cont"inin"otro*% (") > %*"r"td into t!ir *ur co(*onnt% 'it!t! "id o+ "n "ddition"# %u>%t"nc 6c"##d t! ntr"inr$ t! %o#=nt$or t! ("%% %*"r"tin "nt9 to +"ci#it"t t! di%ti##"tion-

Di%ti##"tion i% " %*"r"tion tc!ni?u t!"t @*#oit% t! +"ct t!"t'!n " #i?uid i% *"rti"##) ="*orid$ t! co(*o%ition% o+ t! t'o*!"%% "r dirnt-

B) %*"r"tin t! *!"%%$ "nd r*"tin t! *rocdur$ it i% o+tn*o%%i># to %*"r"t t! oriin"# (i@tur co(*#t#)-

Ho'=r$ ("n) (i@tur% @!i>it %*ci"# %t"t%$ &no'n "%"otro*%$ "t '!ic! t! co(*o%ition$ t(*r"tur$ "nd *r%%ur o+t! #i?uid *!"% >co( ?u"# to t!o% o+ t! ="*or *!"%-

T!u%$ +urt!r %*"r"tion >) con=ntion"# di%ti##"tion i% no #onr*o%%i>#- B) "ddin " c"r+u##) %#ctd ntr"inr to t! (i@tur$ iti% o+tn *o%%i># to>r"& t! "otro* "nd t!r>) "c!i= t! d%ird %*"r"tion-


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Entr"inr% +"## into "t #"%t +our di%tinct c"tori% t!"t (") > idntid >) t! '") in '!ic! t!)("& t! %*"r"tion *o%%i>#- T!% c"tori% "r

69 Li?uid ntr"inr% t!"t do not induc #i?uid


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O>cti=

To *ro=id " n' "nd u%+u# *roc%% +ortr"tin crud (t!"no# to *roduc " *roduct%%nti"##) +r +ro( %uc! (*)ru("tic

("tri"#% oriin"##) cont"ind t!rin- To *ro=id " (t!od +or rnin "nd *uri+)in

t! (t!"no# +r"ction% o+ t! crud #i?uid

*roduct *roducd >) (t!od%$ %uc! "% t!="*or *!"% *"rti"# o@id"tion o+ "%ou%!)droc"r>on%-


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Pro>#( St"t(nt

T! *r%nt in=ntion r#"t% to t! rnin o+"nd *uric"tion o+ crud (t!"no# cont"inin%("## "(ount o+ (*)ru("tic ("tri"#% t!"t

c"nnot > co(*#t#) %*"r"td +ro( t!(t!"no# >) ordin"r) +r"ction"# di%ti##"tion- Crud(t!"no# *roducd >) "n) o+ nu(rou% *rior "rt(t!od% u%u"##) cont"in% i(*uriti%$ %o( o+

'!ic! i(*"rt "n on%i= odor to t! *roduct-T! i(*uriti% '!ic! "r r%*on%i># +ori(*"rtin t! on%i= odor "r *r%nt in =r)#o' concntr"tion "nd "r =r) dicu#t

%tructur"##) to idnti+)-


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T!or)

In c!(i%tr)$ a$eotropi# %istillation i% "n) o+ " r"n o+tc!ni?u% u%d to >r"& "n "otro* in di%ti##"tion-

In c!(ic"# ninrin$ azeotropic distillation u%u"##)r+r% to t! %*cic tc!ni?u o+ "ddin "not!r

co(*onnt to nr"t " n'$ #o'roi#in "otro*t!"t i% !tronou% 6-- *roducin t'o$ i((i%ci>##i?uid *!"%%9$ %uc! "% t! @"(*# >#o' 'it! t!

"ddition o+ >nn to '"tr "nd t!"no#-

T!i% *r"ctic o+ "ddin "n ntr"inr '!ic! +or(% "%*"r"t *!"% i% " %*cic %u>


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Fig& ' i% " Jo' %!t i##u%tr"tin t!*rocdur "nd "rr"n(nt o+ ?ui*(nt +or" semi(#ontinuous or )at#* "otro*ic

di%ti##"tion "ccordin to t! *roc%% o+ t!*r%nt in=ntion-

Fig& + i% " Jo' %!t i##u%tr"tin t!*rocdur "nd "rr"n(nt o+ ?ui*(nt +or#ontinuous "otro*ic di%ti##"tion (*#o)int! (t!od o+ t! *r%nt in=ntion-


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Fiur ,emi(#ontinuous or Bat#* "otro*ic di%ti##"tion


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U%in "% " c!"rin %toc& .00 (# o+ c"u%ticout705C$ di%ti##"t ="*or% co(*o%d o+ (t!)# c)c#o!@"n "nd(t!"no# in "otro*ic *ro*ortion% 'r 'it!dr"'n +ro( t!+r"ction"tin co#u(n t!rou! t! o=r!"d *i* 3$ #"=in in t!co#u(n "nd &tt# to#un$ @c%% (t!)# c)c#o!@"n$(t!"no# "nd (*)ru("tic i(*uriti%-


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T! o=r!"d ="*or% 'r condn%d "nd coo#d to ">out 25Cin condn%r I0-

On coo#in to t!i% t(*r"tur$ t! condn%"t +or(d "(t!"no#


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T! ("tri"# r("inin in +r"ction"tin co#u(n 7 "nd &tt# 4 +or(d "%cond "otro*ic (i@tur co(*ri%in (t!"no# "nd to#un$ !"=in ">oi#in *oint o+ ">out 7.5C-

T! (*)ru("tic i(*uriti% cont"ind in t! crud (t!"no#$ >in(or %o#u># in to#un t!"n in (t!)# c)c#o!@"n$ 'r concntr"td

in &tt# 4 "nd #o'r *#"t% o+ co#u(n 7 "nd 'r 'it!dr"'n "% " *"rto+ t! r%idu"# +r"ction o+ to#un "nd @c%% (t!)# c)c#o!@"n +ro(&tt# 4 t!rou! *i* 3-

H"t '"% %u**#id to &tt# 22 to '!ic! t! (t!"no#%t"nti"##) *ur (t!"no#$'!ic! '"% 'it!dr"'n +ro( &tt# 22 t!rou! *i* .2-


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T! o=r!"d ="*or% 'r condn%d "nd coo#d to ">out 25C incondn%r 23-

On coo#in to t!i% t(*r"tur$ t! condn%"t +or(d " (t!"no#


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Fiur 2 !ontinuous "otro*icdi%ti##"tion


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U%in "% " c!"rin %toc& " +r"ction o+ crud (t!"no# in"d(i@tur 'it! "n "ro("tic !)droc"r>on$ in t!i% @"(*#>nn$ '!ic! '"% c!"rd to +r"ction"tin co#u(n 40 t!rou!*i* 4-

An "#ic)c#ic !)droc"r>on$ in t!i% in%t"nc c)c#o!@"n 6>oi#inr"n 83"% into '!ic! >nn "nd (*)ru("tic i(*uriti% +ro( t!>"% o+ t! co#u(n 'r 'it!dr"'n t!rou! *i* 4 to > !"td"nd rturnd "% ="*or% t!rou! *i* 47 to t! co#u(n-

In +r"ction"tin co#u(n 40 t!r 'r +or(d t'o "otro*%G9 C)c#o!@"noi#in *oint ">out 45C9

29 Bnnoi#in *oint ">out 35 C-9-


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K!n t! t(*r"tur "t t! to* o+ t! co#u(n r"c!d "**ro@i("t#) 45 C$di%ti##"t ="*or% co(*o%d o+ c)c#o!@"n "nd (t!"no# 'r continuou%#)'it!dr"'n +ro( t! co#u(n t!rou! o=r!"d *i* 4$ "nd 'r condn%d "ndcoo#d to "**ro@i("t#) 25C in condn%r 43-

On coo#in to t!i% t(*r"tur$ t! condn%"t +or(d " c)c#o!@"n


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In %*"r"tor t'o *!"%% +or(d-

T! #o'r *!"% co(*ri%d '"tr "nd (*)ru("tici(*uriti% "nd t! u**r *!"% co(*ri%d %u>%t"nti"##)*ur >nn-

T! *urid >nn '"% continuou%#) rturnd t!rou!*i*% 7 "nd 4 +or ru% in co#u(n 40$ '!i# t! '"tr"nd (*)ru("tic i(*uriti% 'r continuou%#) 'it!dr"'n"% " r%idu +ro( t! %*"r"tor t!rou! *i* 8-

Fr"ction"tin co#u(n 2 to '!ic! t! (t!"no#%t"nti"##) *ur(t!"no# +ro( t! >"% '"% introducd >) *i* :-

Mt!"no# ="*or% nr"td in r>oi#r 3 'r rturnd toco#u(n 2 t!rou! *i* 70-


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In co#u(n 2$ t! introducd (t!"no#o= d%cri>d-

In " (odid +or( o+ it!r o+ t! @"(*#% i=n$ %o(*ortion o+ t! (t!"no#


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Mt!odo#o)

Pr+rrd (t!od +or c"rr)in out t!i% *roc%% in=o#=%+r"ction"# di%ti##"tion o+ crud (t!"no# in t! *r%nc o+t'o !)droc"r>on "otro*ic "nt%$ on " nor("##) #i?uid"ro("tic !)droc"r>on "nd t! ot!r " nor("##) #i?uid

"#ic)c#ic !)droc"r>on- Aro("tic !)droc"r>onoi# %o('!"t

">o= t! >oi#in *oint o+ t! nor("##) #i?uid "#ic)c#ic

!)droc"r>ononoi#in t(*r"tur dirnti"# "nd u%o+ @c%% "ro("tic !)droc"r>on 'i## >co( (or =idnt

u*on +urt!r r"din o+ t! !rin d%cri>d *roc%%-


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R%u#t%


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Di%cu%%ion%


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Conc#u%ion

PURIFICATION OF METHANOL BY AZEOTROPIC DISTILLATION.pptx

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