|
|
|
|
| LEADER |
01000caa a22002652c 4500 |
| 001 |
NLM241184754 |
| 003 |
DE-627 |
| 005 |
20250217095901.0 |
| 007 |
tu |
| 008 |
231224s2014 xx ||||| 00| ||eng c |
| 028 |
5 |
2 |
|a pubmed25n0803.xml
|
| 035 |
|
|
|a (DE-627)NLM241184754
|
| 035 |
|
|
|a (NLM)25145178
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Vichaphund, S
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Characteristic of fly ash derived-zeolite and its catalytic performance for fast pyrolysis of Jatropha waste
|
| 264 |
|
1 |
|c 2014
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
|
| 338 |
|
|
|a Band
|b nc
|2 rdacarrier
|
| 500 |
|
|
|a Date Completed 25.09.2014
|
| 500 |
|
|
|a Date Revised 22.08.2014
|
| 500 |
|
|
|a published: Print
|
| 500 |
|
|
|a Citation Status MEDLINE
|
| 520 |
|
|
|a Fly ash from pulp and paper industries was used as a raw material for synthesizing zeolite catalyst. Main compositions of fly ash consisted of 41 wt%SiO2, 20 wt%Al2O3, 14 wt%CaO, and 8 wt% Fe2O3. High content of silica and alumina indicated that this fly ash has potential uses for zeolite synthesis. Fly ash was mixed with 1-3 M NaOH solution. Sodium silicate acting as silica source was added into the solution to obtain the initial SiO2/Al2O3 molar ratio of 23.9. The mixtures were then crystallized at 160 degrees C for 24 and 72 h. Zeolites synthesized after a long synthesis time of 72 h showed superior properties in terms of high crystallinity, less impurity, and small particle size. The catalytic activities of fly ash-derived zeolites were investigated via fast pyrolysis of Jatropha wastes using analytical pyrolysis-gas chromatograph/mass spectrometer (GC/MS). Pyrolysis temperature was set at 500 degrees C with Jatropha wastes to catalyst ratio of 1:1, 1:5, and 1:10. Results showed that higher amounts of catalyst have a positive effect on enhancing aromatic hydrocarbons as well as decreasing in the oxygenated and N-containing compounds. Zeolite Socony Mobil-5 (ZSM-5) treated with 3 M NaOH at 72 h showed the highest hydrocarbon yield of 97.4%. The formation of hydrocarbon led to the high heating value of bio-oils. In addition, the presence of ZSM-5 derived from fly ash contributed to reduce the undesirable oxygenated compounds such as aldehydes, acids, and ketones which cause poor quality of bio-oil to only 0.8% while suppressed N-compounds to 1.7%. Overall, the ZSM-5 synthesized from fly ash proved to be an effective catalyst for catalytic fast pyrolysis application
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a Research Support, Non-U.S. Gov't
|
| 650 |
|
7 |
|a Coal Ash
|2 NLM
|
| 650 |
|
7 |
|a Industrial Waste
|2 NLM
|
| 650 |
|
7 |
|a Zeolites
|2 NLM
|
| 650 |
|
7 |
|a 1318-02-1
|2 NLM
|
| 700 |
1 |
|
|a Aht-Ong, D
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Sricharoenchaikul, V
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Atong, D
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Environmental technology
|d 1993
|g 35(2014), 17-20 vom: 21. Sept., Seite 2254-61
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnas
|
| 773 |
1 |
8 |
|g volume:35
|g year:2014
|g number:17-20
|g day:21
|g month:09
|g pages:2254-61
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 35
|j 2014
|e 17-20
|b 21
|c 09
|h 2254-61
|