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| 001 | vtls000102846 | ||
| 003 | KUKTEM | ||
| 005 | 20251117113351.0 | ||
| 008 | 180124s2017 my da f a m 000 0 eng d | ||
| 020 | _aTHE0000832(Local) | ||
| 039 | 9 |
_a201905271215 _bnazirah _c201802081554 _dfateeha _c201802021701 _dfateeha _y201801241042 _zfateeha |
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| 040 |
_aUMP _beng _cUMP _erda |
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| 090 | _aFKKSA .A379 2017 r Bc. | ||
| 100 | 0 |
_aSiti Aisyah Abdull Malid, _eauthor. |
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| 245 | 1 | 0 |
_aSupported liquid membrane for acetic acid extraction : _bscreening of membrane support preparation factors / _cSiti Aisyah Abdull Malid |
| 264 | 1 |
_aKuantan, Pahang : _bUMP, _c2017 |
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| 264 | 4 | _c© 2017 | |
| 300 |
_axiv, 50 pages : _billustrations (some color), charts ; _c30 cm. + _e1 CD-ROM |
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| 336 |
_atext _2rdacontent |
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_atext _2rdacontent |
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_aunmediated _2rdamedia |
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_acomputer _2rdamedia |
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_avolume _2rdacarrier |
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_acomputer dics _2rdacarrier |
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_atext file _bPDF _2rda |
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| 500 | _aFaculty of Chemical & Natural Resources Engineering | ||
| 502 | _aProject Paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang – 2017 | ||
| 504 | _aIncludes bibliographical references | ||
| 520 | 3 | _aLignocellulosic materials can be acid hydrolyzed into fermentable sugars for ethanol production. However, inhibitory compounds such as carboxylic acid, furans and phenolic substances are also generated during this process. It is necessary to separate these inhibitors from the sugars or to reduce their concentration prior to the fermentation process in order to maximize the ethanol yields. This work focused on the removal of the acetic acid from biomass hydrolysate using supported liquid membrane (SLM) process. The membrane support for the SLM system was fabricated from 15wt% PES, 42.5wt% DMAc, 42.5wt% PEG 200 and 0.1wt% graphene by using vapour-induced phase separation (VIPS) method. Tri-n-octylamine (TOA) and 2-ethyl hexanol were used as carrier and solvent respectively in organic liquid membrane formulation. Two level full factorial design (FFD) was employed to perform the screening of three factors during VIPS process which are temperature of water bath (A) (30-60⁰C), exposure time (B) (10-60 seconds) and air humidity (C) (70-90%). The response was evaluated based on acetic acid extraction percentage from 10 g/L aqueous acetic acid feed solution. From the screening result, all three main factors were significant to the SLM performance. Air humidity factor (C) gave the highest contribution of 28.96% among the main factors. In term of the interaction between factors, water bath temperature (A) and exposure time (B) give the most significant effect with 45.01% percentage of contribution. The second highest interaction effect with 13.20% contribution was the interaction between air exposure time (B) and air humidity (C), however the interaction graph is not intercept. Meanwhile, the interaction effect of water bath temperature (A) and air humidity (C) is insignificant as extraction of acetic acid decrease as both factors were increased. The highest extraction percentage for the acetic acid using SLM system was 75.95% which is using the membrane prepare at 30⁰C water bath temperature, 10 seconds exposure time and 70% air humidity. | |
| 610 | 2 | 0 |
_aFaculty of Chemical & Natural Resources Engineering _xDissertations |
| 650 | 0 |
_aUniversities and Colleges _xDissertations |
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| 650 | 0 | _aTheses | |
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| 999 | _aVTLSSORT0080*0200*0400*0900*1000*2450*2640*2641*3000*3360*3361*3370*3371*3380*3381*3470*5000*5020*5040*5200*6100*6500*6501*9992 | ||