由买买提看人间百态

topics

全部话题 - 话题: biomass
首页 上页 1 2 3 4 5 6 7 下页 末页 (共7页)
m*****a
发帖数: 658
1
而且从政府到公司都非常支持这个项目。
z*h
发帖数: 773
2
来自主题: ChemEng版 - 问一下biofuel前景怎么样
Energy application decides its production.
Biofuels are used for transportation sector but not good for electricity
generation or burning. Biomass may be the sole sustainable primary energy
source for transportation sector. So it is why it is important to develop
better biofuels. (Note: transportation fuels accounts for ~20 % of the total
energy market based on BTU. In the USA, it is about ~30% of total market).
Biofuels R&D is like dotcom. Most researches are trash, including famous
Amyris and
S*M
发帖数: 104
3
来自主题: ChemEng版 - PHD选校求建议:
最近做催化的钱很多。因为做biomass,国家政策倾斜。估计至少能热个一小段时间。
l******2
发帖数: 2502
4
来自主题: ChemEng版 - Call for article
CALL FOR ARTICLE
Dear (Dr.) Colleague,
Greetings!
I am glad to inform you that, The IIOAB Journal will publish a special issue
on Renewable energy resources and recycling in November, 2011.
The IIOAB Journal (www.iioab.org) is the official journal of the Institute
of Integrative Omics and Applied Biotechnology (IIOAB) (www.iioab.webs.com)
is an online open access, international, bimonthly, multidisciplinary, peer
-reviewed one that publishes original, innovative, translational, and
applied re... 阅读全帖
l******2
发帖数: 2502
5
来自主题: ChemEng版 - Call for article
CALL FOR ARTICLE
Dear (Dr.) Colleague,
Greetings!
I am glad to inform you that, The IIOAB Journal will publish a special issue
on Renewable energy resources and recycling in November, 2011.
The IIOAB Journal (www.iioab.org) is the official journal of the Institute
of Integrative Omics and Applied Biotechnology (IIOAB) (www.iioab.webs.com)
is an online open access, international, bimonthly, multidisciplinary, peer
-reviewed one that publishes original, innovative, translational, and
applied re... 阅读全帖
q******1
发帖数: 10
6
我化学工程本科毕业, 在中国一家生产化工原料的外企做过 HSE 的实习。 这三年里
可劲学习, 也没什么科研经验, 就senior design project 做的是biomass
gasification. 我现在都在网上漫无目的的投简历,只要和专业相关都投了, 目标想
做一些QA, Process design, analysis,hse ,这些比较适合女孩子的工程工作。
z*h
发帖数: 773
7
来自主题: ChemEng版 - Biofuels future and criticism
Highlights
► We are flooded by a wave of biased or even false information about
biofuels.
► Most advanced biofuels cannot be economically produced compared to
ethanol and H2.
► Thermodynamics determines economics.
► Cellulosic ethanol and butanol are the best short- and middle-term
biofuels.
► Sugary hydrogen would be the best ultimate biofuel.
Abstract
doi:10.1016/j.procbio.2011.08.005
Since biofuels is a hot topic, many researchers new to this field are eager to p... 阅读全帖
b*****o
发帖数: 3499
8
来自主题: ChemEng版 - Biofuels future and criticism
transportation fuels from renewable biomass is a joke
y********a
发帖数: 77
9
来自主题: ChemEng版 - Biofuels future and criticism
It depends on whether energy crop can be successfully produced in large area
or not. And the definition of biomass could be broader.
Your concern is reasonable, that's why this kind of work is mainly in the
lab orpilot scale now. However, many other researches have the same
situation before they were fully commercialized. The technical breakthoughs
are needed in this area. But is this different with others?

will
z*h
发帖数: 773
10
来自主题: ChemEng版 - Biofuels future and criticism
Highlights
► We are flooded by a wave of biased or even false information about
biofuels.
► Most advanced biofuels cannot be economically produced compared to
ethanol and H2.
► Thermodynamics determines economics.
► Cellulosic ethanol and butanol are the best short- and middle-term
biofuels.
► Sugary hydrogen would be the best ultimate biofuel.
Abstract
doi:10.1016/j.procbio.2011.08.005
Since biofuels is a hot topic, many researchers new to this field are eager to p... 阅读全帖
b*****o
发帖数: 3499
11
来自主题: ChemEng版 - Biofuels future and criticism
transportation fuels from renewable biomass is a joke
y********a
发帖数: 77
12
来自主题: ChemEng版 - Biofuels future and criticism
It depends on whether energy crop can be successfully produced in large area
or not. And the definition of biomass could be broader.
Your concern is reasonable, that's why this kind of work is mainly in the
lab orpilot scale now. However, many other researches have the same
situation before they were fully commercialized. The technical breakthoughs
are needed in this area. But is this different with others?

will
r*********7
发帖数: 1008
13
本人化工硕士一枚
在美学校100-200左右
国内华理毕业
硕士期间,课题做的是Biomass方向的,找工作快半年了,开始还有一些面试,但是,
当时没啥面试技巧,错过了很几个很好的机会。最近,也有继续投简历,可是,近一个
月不知道为什么,音讯全无。快崩溃了.....
版上有啥牛人帮忙推荐么?或是给指点一下么?
我想找Research&Develop,Quality Control方面的都可以,实在不行,lab technician
我都有申。这种每天看着存款渐渐的捉襟见肘的感觉真的很难过。
S*****n
发帖数: 6055
14
biomass具体做啥的?你要是做热裂解结果人家找酶催化的,那你肯定没戏啊。。。关
键是你会干啥。。。

technician
z*h
发帖数: 773
15
Sugars can be made from biomass or artificial photosynthesis.
S*****n
发帖数: 6055
16
if hydrogen can drive cars, nuclear and/or solar energy can also drive cars
you have to give up internal combustion engine anyway. it makes no big
difference whether you switch to hydrogen power or to nuclear power
or, the other solution would be, if car guys are too lazy to give up
internal combustion engine, then biogasoline/biodiesel may have a chance. of
coz, biodiesel from triglycerides has no future. the biogasoline/biodiesel
has to be from CH2O.
As I said, biomass (CH2O) could be the midt... 阅读全帖
z*h
发帖数: 773
17
Sugars can be made from biomass or artificial photosynthesis.
S*****n
发帖数: 6055
18
if hydrogen can drive cars, nuclear and/or solar energy can also drive cars
you have to give up internal combustion engine anyway. it makes no big
difference whether you switch to hydrogen power or to nuclear power
or, the other solution would be, if car guys are too lazy to give up
internal combustion engine, then biogasoline/biodiesel may have a chance. of
coz, biodiesel from triglycerides has no future. the biogasoline/biodiesel
has to be from CH2O.
As I said, biomass (CH2O) could be the midt... 阅读全帖
s******t
发帖数: 1672
19
要求如下。
最主要的两点要求:
1。 有高压操作的经验。 我们的反应器可能要用到4000psi。
2。 要熟悉自动化控制的设备,仪器,软件等。
另外
3。 最好有根据操作条件,设计过程,选用设备的经验
4。 公司可办 H1b。工作地点在 Phoenix AZ
如果感兴趣,发信给HM:
或站内联系我也可以。
多谢!
=========================================================================
Job Title: Process Engineer, W2E
Department/Location: Engineering – Chandler, AZ
Reports To:
Date: 3/28/12
Purpose:
This position is responsible for optimizing the operation of a waste-water
to energy di... 阅读全帖
a*****g
发帖数: 34
20
【 以下文字转载自 Chemistry 讨论区 】
发信人: anxingg (猡爸), 信区: Chemistry
标 题: 求审稿机会-heterogeneous catalysis
发信站: BBS 未名空间站 (Thu Aug 23 23:32:50 2012, 美东)
准备年内申请绿卡,但目前审稿次数太显寒酸,特在此求审稿机会,多谢先!
我的专业方向为heterogeneous catalysis,尤其是acid-base and metal catalysis,曾
经做过biomass conversion和syngas conversion方面的工作。有过几次审稿经历,如
Applied Catalysis A。具体情况可以站内email联系。
k****e
发帖数: 2456
21
来自主题: ChemEng版 - 哪个会议可以发表会议论文?
会议论文是不是要比journal好发一些
化工/rheology/biomass方面都可以
S*****n
发帖数: 6055
22
来自主题: ChemEng版 - 去生物制油公司?
差不太多。。。biomass的upfront cost能高一些。。。

梨花;遍体纷纷,如飘瑞雪。张郃、徐晃心惊胆战,不敢迎敌。云救出黄忠,且战且走
;所到之处,无人敢阻。
S*****n
发帖数: 6055
23
来自主题: ChemEng版 - 去生物制油公司?
差不太多。。。biomass的upfront cost能高一些。。。

梨花;遍体纷纷,如飘瑞雪。张郃、徐晃心惊胆战,不敢迎敌。云救出黄忠,且战且走
;所到之处,无人敢阻。
A***N
发帖数: 219
24
Send me PM with you background and contact email.
1, Concrete Mixer Hybrid
2, Power Generation, Osmosis
3, Solar Energy, Housing
4, Solar integrated absorption refrigeration
5, Energy Economic Modeling
6, Lifecycle cost analysis, air conditioning
7, Biomass, Coal Combustion [GONE]
s**********g
发帖数: 102
25
来自主题: ChemEng版 - 请问 这个方向找工作怎么样
Combustion and energy conversion, including:
Solid Fuel Combustion and incineration in packed beds, particularly biomass
combustion, including computer modelling and experiments.
Liquid Fuel Combustion, in particular modelling of mixture combustion using
continuous thermodynamics, bio-fuels, ignition, high pressure effects.
Energy Conversion: reciprocating steam engines.
Brief slide show on current research
Fourth year thesis topics
A***N
发帖数: 219
26
来自主题: ChemEng版 - 请问 这个方向找工作怎么样
Regarding combustion research, especially of experiments, there are few
openings, majorly in automotive/aerospace industry. Besides, big companies,
such as GE global research, will occasionally have openings.
Regarding the skill sets of MODELING (CFD, C++, FORTRAN, etc.), knowledge of
chemical reaction (thermodynamics, kinetics, phase transformation/
separation, mass transfer, combustion,etc.), there will be much more
simulation opportunities in oil&gas industry, chemical industry,
pharmaceutica... 阅读全帖
p**********e
发帖数: 18
27
求审稿,
Polymer synthesis and characterization
bio-oil,biomass
国内土博,
谢谢
s*******n
发帖数: 2
28
请直接联系Dr. Hans-Joachim Lehmler。
Postdoctoral Fellow in Organic Chemistry: Applications are invited from
highly motivated synthetic organic chemists to participate in a
multidisciplinary research project funded by the United States Department of
Agriculture. To overall objective is to use a molecular imprinting approach
for the separation and recovery of high-value pentose derivatives from
Cellulosic Biomass. The successful candidate will be responsible for the
synthesis and characterization of c
m*******s
发帖数: 3142
l********e
发帖数: 41
30
thanks. works now.
s*********e
发帖数: 68
31
来自主题: Chemistry版 - 也蹦出来聊个新能源
That's why they pay more attention to "biomass energy".
According to USDA, they've planned to develop more "cellulose ethanol"
instead of "corn ethanol". There are bunch of arguments. A famous representative is from Cornell University, but they actually
doubt if bio-ethanol is environmental friendly. Then other people jump out
to prove bio-ethanol is environmental friendly. Many debates on if food
price is driven by the ethanol plant. Someone said yes it is. Then there are
reports said no,ethano
s**********x
发帖数: 4593
32
来自主题: Chemistry版 - 请问biomass是啥?
biofuel呢?
s**********x
发帖数: 4593
33
来自主题: Chemistry版 - 请问biomass是啥?
能具体说说吗?
j*********5
发帖数: 6221
34
来自主题: Chemistry版 - 请问biomass是啥?
应该是动植物相关的物质都算,比如麦秸秆,牛粪,花草树木都算
S*****n
发帖数: 6055
35
来自主题: Chemistry版 - 请问biomass是啥?
牛吃的东西曾经都有生命吧。。。
j*********5
发帖数: 6221
36
来自主题: Chemistry版 - 请问biomass是啥?
精辟。。。
j*********5
发帖数: 6221
37
来自主题: Chemistry版 - 请问biomass是啥?
生质燃料其中一种定义是“至少80%的体积,由十年内生产的有机活体物质所提炼出的
燃料。”
j*********5
发帖数: 6221
38
来自主题: Chemistry版 - 请问biomass是啥?
恩,同意
不过请问,生物乙醇和普通工业乙醇仅仅就是来源不同那么简单吗?
S*****n
发帖数: 6055
39
来自主题: Chemistry版 - 请问biomass是啥?
来源不同,自然而然杂质的分布、含量都不同
主要成分都是C2H5OH,没啥区别
u***n
发帖数: 1263
40
来自主题: Chemistry版 - 请问biomass是啥?
大部分是biodiesel
直接把油,进行酯交换
S*****n
发帖数: 6055
41
来自主题: Chemistry版 - 请问biomass是啥?
biodiesel就是概念提出的比较早,被很多地方用来作秀,其实没啥前途
biofuel要真想做大规模应用,还得在lignocellulose上下功夫
发酵也好,热解也好,只有lignocellulose才有足够的产量能够在energy market上占
据一定的share
u***n
发帖数: 1263
42
来自主题: Chemistry版 - 请问biomass是啥?
关键是lignocellulose不能直接吃
所以好啊
S*****n
发帖数: 6055
43
来自主题: Chemistry版 - 请问biomass是啥?
bio-oil的产量比lignocellulose至少小一个数量级,也有可能是两个,我记不清楚了
u***n
发帖数: 1263
44
来自主题: Chemistry版 - 请问biomass是啥?
现在大部分的lignocellulose都烧了,发电了
S*****n
发帖数: 6055
45
来自主题: Chemistry版 - 请问biomass是啥?
关键是如何弥补transportation fuel的缺口?
是把lignocellulose用来发电,省出煤来做煤液化?
还是继续用煤发电,研究lignocellulose to transportation fuel?
而且其实lignocellulose和煤转化成transportation fuel的途径多少有些类似。。。
当然,每个人都有自己的看法
S*****n
发帖数: 6055
46
来自主题: Chemistry版 - 请教LC问题
在下奉命买台LC
请教一下,LC、HPLC、LC-MS都有啥区别啊?我该怎么选购?哪些牌子比较靠谱呢?柱
子啥的又怎么选啊?
budget在20-100k,主要做fuel processing和biomass conversion的
c******x
发帖数: 438
47
来自主题: Chemistry版 - two papers help
1.Science 2 February 2007:
Vol. 315. no. 5812, pp. 620 - 622
Composite Materials with Viscoelastic Stiffness Greater Than Diamond
T. Jaglinski,D. Kochmann, D. Stone, R. S. Lakes
2.Coordination Chemistry Reviews
Volume 254, Issues 15-16, August 2010, Pages 1854-1870
The catalytic oxidation of biomass to new materials focusing on starch,
cellulose and lignin
S.R. Collinson and W. Thielemans
Thanks
z*h
发帖数: 773
48
Jame Dumesic
k***l
发帖数: 25
49
second that. Maybe hard to get in his group.
S*****n
发帖数: 6055
50
Dumesic不算吧。。。
thermochemical conversion一般是指pyrolysis然后走合成气路线的。。。
首页 上页 1 2 3 4 5 6 7 下页 末页 (共7页)