大神，求这篇外文文献，感谢感谢！
Silicalite-1 Shell Synthesized onto Cylinder-Shaped ZSM-5
Extrudate for Disproportionation of Toluene into Para-Xylene
Demin Chen * Jun Wang * Xiaoqian Ren *
Hui Teng * Haiwei Gu
Received: 11 January 2010/Accepted: 8 February 2010/Published online: 2 March 2010 Springer Science+Business Media, LLC 2010
Abstract The cylinder-shaped ZSM-5 extrudate with a catalyzed by mordenite, offering high conversion 60% and
diameter 2 mm and a length 4–5 mm was coated with a thermodynamic distribution of xylene isomers: OX (ortho-
silicalite-1 shell at its external surface by a hydrothermal xylene) 24%, MX (meta-xylene) 53%, and PX 23% [2].
synthesis with TEOS (tetraethylorthosilicate) as a silica Disproportionation of toluene over ZSM-5 catalysts is
source andTPAOH(tetrapropylammoniumhydroxide)asa known as an important classical shape-selective reaction to
structure-directing agent. Catalytic performance of the directly produce highly concentrated PX because the pore
obtained core/shell zeolite composite was measured in size of ZSM-5 is much more favorable to the diffusion of
disproportionation of toluene using a pressured fixed-bed PX compared with OX and MX; however, modification of
reactor. Ratios of H2O/SiO2 and TPAOH/SiO2, crystalli- the external surface of ZSM-5 is necessary to achieve this
zation time and temperature, and synthesis cycles were purpose duo to the quick isomerization of PX at acid sites
adjusted to get optimal synthesis conditions, at which the therein [2–4].
selectivity to para-xylene is enhanced from the thermody- Many modifications for ZSM-5 catalysts which could
namic equilibrium value 24% to nearly 80%. SEM and enhance the para-selectivity have been carried out, such as
XRD results further confirm the formation of the ZSM-5/ doping with P and MgO [5], deposition of an inert silica
silicalite-1 core/shell structure, which is responsible for the layer by CVD (chemical vapor deposition) [6–8] or CLD
evident shape-selective production of para-xylene. (chemical liquid deposition) [6, 9, 10], and so on [11, 12].
Among them, CLD with (poly)siloxanes as deposition
Keywords Core/shell zeolite composite ZSM-5 agents turns out to be the most industrially important
Silicalite-1 Disproportionation of toluene method because of the rather high para-selectivity resulted
Shape-selective catalysis from the effective passivation of acid sites on the external
surface of ZSM-5 by the deposited inert silica layerand the
fine regulation of the pore mouth of ZSM-5, as well as its
1 Introduction easy operation and good reproducibility [6, 10, 11, 13].
In recent years, core/shell zeolite composites have
PX (para-xylene) is an important raw material for manu- attracted great interest in catalysis context, which are pre-
facturing terephthalic acid that is used to fabricate fibers, pared through the overgrowth of continuous zeolite shell
packaging materials and containers [1]. Nowadays, toluene around the zeolite crystal. A number of core/shell zeolite
disproportionation and transalkylation with trimethylbenz- composites have been reported, including ZSM-5/silicalite-
enes is the main industrial process to produce PX, which is 1[14–16], LTA/FAU [17], EMT/FAU [18], CHA/SOD
[19], BEA/MFI [20], MFI/AFI [2, 21], etc. Zheng et al.
[22] obtained the Y/Beta composite with a core/shell
D. Chen J. Wang () X. Ren H. Teng H. Gu
structure through adding NaY zeolite into the precursor
State Key Laboratory of Materials-Oriented Chemical
solution for synthesizing Beta zeolite; the composite
Engineering, College of Chemistry and Chemical Engineering,
showed an increased conversion in catalytic cracking of n-
Nanjing University of Technology, Nanjing 210009, China
e-mail: junwang@njut.edu.cn octane. Kong et al. [23] fabricated MOR/ZSM-5
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还有你官方那个解界面已经用完的截图一起发才行 全屏截
速度与激情3男主角和他朋友去选那辆绿色车时的插曲是什么？
肖恩和TWINKIE(就是那个到处卖东西的黑人)去停车场看车:绿色大众途安，很酷的车。
那个场景的背景歌曲不在《东京漂移》原声集里。
名字是：《My Life be Like》，别名《Ooh Ahh》，艺术家：Grits /Gritz
下载么，百度搜一下或者狗狗搜索。实在没源下，请给我邮箱地址，我邮寄给你。
;tn=baidump3ct=134217728lf=rn=word=My+Life+be+Likelm=-1
这里第四个，3.6MB MP3，音质一般般吧，你自己再找找吧^_^
前几天正好有人问过的，就把自己的回答粘过来了：
PS:歌词，请用记事本保存为lrc文件用于歌词秀：
－－－－－－－－－－－－－－－－－－－－－－－－－
[ti:] Gritz
[ar:] My Life Be Like
[al:] The Art Of Translation
[by:] Hawk
[00:00.00]My life be like
[00:01.30]Ooh Aah (yeah), Ooh Ooh
[00:05.33]My life be like (yeah)
[00:06.08]Ooh Aah, Ooh Aah (yeah), Ooh Ooh
[00:10.95]Ooh Aah (yeah), Ooh Ooh
[00:15.03]My life be like (yeah)
[00:15.74]Ooh Aah, Ooh Aah (yeah), Ooh Ooh
[00:19.98]My life be like (yeah)
[00:20.54]It's times like these that make me say
[00:23.07]Lord if you see me please come my way
[00:25.45]Leavin' bread crumbs for when I stray
[00:27.92]Rely on sacrifice and the price you paid
[00:30.37]Feel me like a fingertip (fa-finger tip, fa-finger tip)
[00:33.55]Sometimes I fall I slip
[00:35.18]My heartfelt desire be more like you
[00:37.54]Tryin' not to quench your fire with the things I do
[00:39.77]I'm on an island by my lonesome stranded
[00:41.55]Low key and stayin' candid
[00:43.28]Reflect on all the things I try my hand at
[00:44.92]Church for the equations to persuasions I'm used to
[00:47.17]Finding comfort in the zones of closet bones I get loose to
[00:49.57]A mountainous fontaine
[00:51.08]Spinnin' and monsoonin', grinnin' it's hign octane
[00:53.48]Explosive how I came
[00:54.75]Rollin' down hills cause lifes a hastle
[00:56.50]Encircled by my folly like a moat surround a castle
[00:58.92]Stay afloat, catch a second wind
[01:00.27]Thin is the air I breathe
[01:01.84]Teary eyed nose runnin' wipe the snot on my sleeve
[01:04.32]I'm callin' on the Savior to be all that I need
[01:06.68]Please forgive me my behavior had me lost at light speed
[01:09.18]It's times like these that make me say
[01:11.55]Lord if you see me please come my way
[01:13.96]Leavin' bread crumbs for when I stray
[01:16.37]Rely on sacrifice and the price you paid
[01:18.97]Feel me like a fingertip (fa-finger tip, fa-finger tip)
[01:21.69]Sometimes I fall I slip
[01:23.50]My heartfelt desire be more like you
[01:26.03]Tryin' not to quench your fire with the things I do
[01:28.57]The fear of never fallin' in love
[01:30.27]And the tears after losin' the feelings of what you thought love was
[01:33.26]Like the dirt still up under the rug (My life be like)
[01:35.37]Bad characteristics covered in Christs blood
[01:38.13]The joy of new birth and the pain of growin' up
[01:40.48]The bliss between givin' my all and givin' up
[01:42.93]The highs and lows
[01:44.07]Paths and roads I chose
[01:45.37]In the cold I froze
[01:46.47]Tryin' to ease my woes
[01:47.67]In this world of sin
[01:49.07]Clothes to thin to fend
[01:50.17]So to God I send
[01:51.29]Words of help to win
[01:52.75]In grumblings so deep letters could never express
[01:55.10]So the sound of Ooh Aah beneath my breath projects
[01:57.64]It's times like these that make me say
[01:59.90]Lord if you see me please come my way
[02:02.36]Leavin' bread crumbs for when I stray
[02:04.61]Rely on sacrifice and the price you paid
[02:07.29]Feel me like a fingertip (fa-finger tip, fa-finger tip)
[02:10.53]Sometimes I fall I slip
[02:12.15]My heartfelt desire be more like you
[02:14.56]Tryin' not to quench your fire with the things I do
[02:17.40](Don't be bad)
[02:18.74]My life be like
[02:19.72]Ooh Aah Ooh
[02:20.65]Dum dum ditty
[02:22.02]Here come that boy from the Capital City
[02:24.66]Last up on the Grits new ditty
[02:26.94]But eight bars or the truth well do (uh)
[02:29.38]I believe theres a private stunnin
[02:31.25]And I believe in the Kindgom Comming
[02:34.31]I believe if you seek the truth
[02:36.07]You don't need to look far cause it's gonna find you
[02:38.77]So why oh why do I trip and stumble?
[02:41.41]And ooh aah as commitment crumbles?
[02:44.08]I can't believe that I'm here again....
[02:48.49]It's times like these that make me say
[02:50.95]Lord if you see me please come my way
[02:53.30]Leavin' bread crumbs for when I stray
[02:55.67]Rely on sacrifice and the price you paid
[02:58.15]Feel me like a fingertip (fa-finger tip, fa-finger tip)
[03:01.32]Sometimes I fall I slip
[03:03.01]My heartfelt desire be more like you
[03:05.36]Tryin' not to quench your fire with the things I do
[03:07.71]It's times like these that make me say
[03:10.32]Lord if you see me please come my way
[03:12.73]Leavin' bread crumbs for when I stray
[03:15.07]Rely on sacrifice and the price you paid
[03:17.94]Feel me like a fingertip (fa-finger tip, fa-finger tip)
[03:20.51]Sometimes I fall I slip
[03:22.46]My heartfelt desire be more like you
[03:24.77]Tryin' not to quench your fire with the things I do
[03:31.00]Fa-finger tip, fa-finger tip
[03:33.33]Fa-finger tip, fa-finger tip
[03:35.07]My life be like
[03:35.74]Fa-finger tip, fa-finger tip
[03:38.17]Fa-finger tip, fa-finger tip
[03:39.52]Ma-ma-my life be like
[03:40.77]Fa-finger tip, fa-finger tip
[03:43.09]Fa-finger tip, fa-finger tip
[03:44.78]My life be like
[03:45.60]Fa-finger tip, fa-finger tip
[03:47.94]Fa-finger tip, fa-finger tip
[03:49.62]My life be like
the pore mouth of ZSM-5, as well as its1 Introduction easy operation and good reproducib