刘昌俊
碳一化学、温室气体转化、等离子体催化剂制备与表征和等离子体直接转化温室气体方面的研究
个性化签名
- 姓名:刘昌俊
- 目前身份:
- 担任导师情况:
- 学位:
-
学术头衔:
博士生导师
- 职称:-
-
学科领域:
催化化学
- 研究兴趣:碳一化学、温室气体转化、等离子体催化剂制备与表征和等离子体直接转化温室气体方面的研究
刘昌俊教授,博士生导师;国家杰出青年科学基金获得者;天津市特聘教授;中国民主同盟盟员;1993年在美国PE公司和Minnesota大学培训学习;1994年至1997年在美国Oklahoma大学和Prairie View 农机大学作博士后访问研究;1998年在瑞士ABB公司任工程师.美国化学会会员;1998年11月回国. 现主要从事碳一化学、温室气体转化、等离子体催化剂制备与表征和等离子体直接转化温室气体方面的研究。在以上研究方面,取得国内外同行认可的领先研究成果.在催化,能源与等离子体化学领域国际公认高水平期刊发表论文30余篇,应邀发表综述论文两篇,发表论文被(SCI)引用次数超过300次;在美国,中国,欧洲拥有专利9项,另有多项在申请.培养的研究生获得了侯详麟石油加工科技奖,宝钢奖学金等多项奖励.刘昌俊教授近年来活跃在相关领域国际学术舞台上,为宣传我国在相关领域研究成果作出了很大努力.近年来,刘昌俊教授参与的国际学术活动有:担任美国化学会第223次会议温室气体利用专题研讨会主席(2002年4月;美国Florida, Orlando);美国化学会第227次会议温室气体利用专题研讨会主席(2004年3月;美国加州Anaheim);美国化学会第225次会议等离子体技术与催化专题研讨会副主席(2004年3月;美国加州Anaheim);还担任在国外举办的大型国际系列会议组委三次;担任国际二氧化碳利用大会科学委员会委员.在日韩举行的国际学术会议上作邀请报告四次.担任在国内举办的国际国内学术会议组委四次.刘昌俊教授还担任了《Plasma Science & Technology》编委;ACS Symposium Series专刊Utilization of Greenhouse Gases编辑;《Catalysis Today》两个专辑客座编辑;《天津大学学报》(自然科学版)编委;国家自然科学基金委员会化学科学部第九届,第十届学科评审组成员。
-
主页访问
4364
-
关注数
0
-
成果阅读
767
-
成果数
26
刘昌俊, Ji-Jun Zou, , Yue-ping Zhang, Chang-Jun Liu, Yang Li, and Baldur Eliasson
Plasma Chemistry and Plasma Processing, Vol. 23, No.1, March 2003,-0001,():
-1年11月30日
In this work, starch has been used to enhance the oxygenate formation directly from methane and carbon dioxide using dielectric-barrier discharges (DBDs). The use of starch inhibits the formation of liquid hydrocarbons and significantly increases the selecti
Methane, carbon dioxide, starch, dielectric-barrier discharge, oxygenates.,
-
22浏览
-
0点赞
-
0收藏
-
0分享
-
227下载
-
0评论
-
引用
刘昌俊, Chang-Jun Liu, , Bingzhang Xue, Baldur Eliasson, Fei He, Yang Li, and Gen-Hui Xu
Plasma Chemistry and Plasma Processing, Vol. 21, No.3, 2001,-0001,():
-1年11月30日
Experimental in
Methane, carbon dioxide, higher hydrocarbon, dielectric barrier discharge.,
-
33浏览
-
0点赞
-
0收藏
-
0分享
-
309下载
-
0评论
-
引用
【期刊论文】PLASMA CO2 REFORMING OF METHANE VIA CORONA DISCHARGES
刘昌俊, Changjun Liu, Genhui Xu
Prepr. Pap.-Am. Chem. Soc., Div. Fuel Chem. 2003, 48 (2), 794,-0001,():
-1年11月30日
A lot of attentions have been recently paid to the CO2 reforming of methane to syngas. A major reason for it is that this reaction can provide us a syngas with a 1/1 ratio of H2 and CO, which is typically suitable for the synthesis of valuable oxygenated chemicals.1 Among the catalysts developed, Al2O3 supported Ni catalysts were extensively investigated due to their relatively high activity and low cost. The major problem for the further practical application of these nickel catalysts is the deactivation of the catalyst, suffered from carbon deposition on the catalyst during reactions. Many investigators are working on the improvement in this nickel catalyst by using the addition of promoters,2, 3 using novel reactor configurations,4 and using different supports.3 In this work, we attempt to use an AC corona discharge plasma for the CO2 reforming of methane to syngas. A stable operation of plasma CO2 reforming of methane has been achieved.
-
42浏览
-
0点赞
-
0收藏
-
0分享
-
171下载
-
0评论
-
引用
【期刊论文】DFT Study of Structural and Electronic Properties of PdO/HZSM-5
刘昌俊, Jian-guo Wang and Chang-jun Liu*, Jian-guo Wang and Chang-jun Liu*Zhiping Fang, Yue Liu, and Zhongqi Han
J. Phys. Chem. B 2004, 108, 1653-1659,-0001,():
-1年11月30日
A density functional theory (DFT) study has been conducted to investigate the structural and electronic properties of PdO/HZSM-5 and thereby the relationship between PdO and the acid sites of HZSM-5. Different cluster models of PdO/HZSM-5 based on experimental and theoretical works are presented. The study shows that the local structure of PdO supported on HZSM-5 is very similar to the four-coordinated square planar structure of bulk PdO. This is consistent with the reported EXAFS analysis in the literature. The average distances between the Pd and the four coordinated oxygen atoms obtained by DFT calculations with different cluster models are close to the reported experimental results. The analysis of the Mulliken population and the electron density difference of the cluster models shows that there exists a charge transfer from the four coordinated oxygen atoms to the Pd. The components of the frontier molecular orbital of these cluster models come mainly from the Pd and the four coordinated oxygen atoms. The DFT study confirms that the acid sites in HZSM-5 keep the PdO well dispersed due to the bond interaction between the acidic proton atom and the oxygen atom of PdO. In addition, after the formation of PdOH+, the acidity of HZSM-5 complex remains high or in some instances increases.
-
36浏览
-
0点赞
-
0收藏
-
0分享
-
164下载
-
0评论
-
引用
【期刊论文】Floating double probe characteristics of non-thermal plasmas in the presence of zeolite
刘昌俊, Chang-jun Liu a, b, *, Jia-xin Wang c, Kai-lu Yu a, Baldur Eliasson d, Qing Xia b, Bingzhang Xue d, Yu-hang Zhang a
Journal of Electrostatics 54(2002)149-158,-0001,():
-1年11月30日
The combination of catalyst and non-thermal plasmas has led to some unusual chemical behaviors, especially with zeolite catalyst. A mechanism has been proposed to explain the observed interaction between catalyst and non-thermal plasmas. This mechanism includes two aspects: plasma promoted or induced catalysis and catalyst enhanced non-equilibrium of nonthermal plasmas. In this paper, we present some direct experimental evidence for the catalyst (zeolite)-enhanced non-equilibrium of non-thermal plasmas suggesting the use of zeolite increases, significantly, the electron temperature of non-thermal plasmas, while the gas temperature remains unchanged. A floating double-probe characteristic has been utilized to measure the electron temperature. Compared to the case without zeolite, the electron temperature of non-thermal plasmas with Mo-Zn/HZSM-5 increases up to 250%, while, at the same time, the discharge power reduces 58%, compared to that without zeolite. r 2002 Elsevier Science B.V. All rights reserved.
Non-thermal plasma, Glow discharge, Double-probe characteristic, Zeolite, Plasma chemical processing, Langmuir probe
-
42浏览
-
0点赞
-
0收藏
-
0分享
-
245下载
-
0评论
-
引用
【期刊论文】Nonoxidative Methane Conversion to Acetylene over Zeolite in a Low Temperature Plasma
刘昌俊, Chang-jun Liu, Richard Mallinson, and Lance Lobban
JOURNAL OF CATALYSIS 179, 326-334(1998),-0001,():
-1年11月30日
Previous investigations have found that the plasma catalytic conversion of methane is a low-emperature process for the activation of methane, the major component of natural gas. In this paper, the production of acetylene via plasma catalytic conversion of methane over NaY zeolite is discussed. Hydrogen is produced as a by-product during this plasma catalytic methane conversion. A methane/hydrogen feed with oxygen as an additive and helium as a diluent has been studied in this investigation. The CH4/H2/O2 system is found to be more selective for the production of C2 hydrocarbons, compared to the CH4/O2, CH4/H2O, and CH4/CO2 systems reported previously. A higher hydrogen concentration feed is more favorable for acetylene formation. The selectivity and yield of C2 hydrocarbons are related to the hydrogen feed rate, gas temperature, concentration of oxygen additive, and flowrate. The highest yield of C2 hydrocarbons (32%) is obtained at the lowest flowrate used (10 cm3/s; residence time
-
23浏览
-
0点赞
-
0收藏
-
0分享
-
62下载
-
0评论
-
引用
刘昌俊, Zhong-Long Ma, Rong-Li Jia, Chang-Jun Liu*
Journal of Molecular Catalysis A: Chemical 210(2004)157-163,-0001,():
-1年11月30日
Novel amorphous Ni-B catalysts supported on alumina have been developed for the production of hydrogen peroxide from carbon monoxide, water and oxygen. The experimental investigation confirmed that the promoter/Ni ratio and the preparation conditions have a significant effect on the activity and lifetime of the catalyst. Among all the catalysts tested, the Ni-La-B/γ- Al2O3 catalyst with a 1:15 atomic ratio of La/Ni, dried at 120℃, shows the best activity and lifetime for the production of hydrogen peroxide. The deactivation of the alumina-supported Ni-B amorphous catalyst was also studied. According to the characterizations of the fresh and used catalysts by SEM, XRD and XPS, no sintering of the active component and crystallization of the amorphous species were observed. However, it is water poisoning that leads to the deactivation of the catalyst. The catalyst characterization demonstrated that the active component had changed (i.e., amorphous NiO to amorphous Ni(OH)2) and then salt was formed in the reaction conditions. Water promoted the deactivation because the surface transformation of the active Ni species was accelerated by forming Ni(OH)2 in the presence of water. The formed Ni(OH)2 would partially change to Ni3(PO4)2.
Hydrogen peroxide, Amorphous alloy, Ni-B catalyst, Carbon monoxide, Deactivation
-
34浏览
-
0点赞
-
0收藏
-
0分享
-
230下载
-
0评论
-
引用
刘昌俊, Chang-jun Liu, Jian-guo Wang, Yu Wang and Baldur Eliasson
Fuel Chemistry Division Preprints 2003, 48 (1), 268,-0001,():
-1年11月30日
-
38浏览
-
0点赞
-
0收藏
-
0分享
-
78下载
-
0评论
-
引用
刘昌俊, Yue-ping Zhang a, b, Yang Li a, Yu Wang a, Chang-jun Liu a, *, Baldur Eliasson c
Fuel Processing Technology 83(2003)101-109,-0001,():
-1年11月30日
Methane conversion in the presence of carbon dioxide was investigated under the conditions of dielectric-barrier discharge plasmas. Different from the previous investigations, the grounded electrode is covered by the dielectric material (quartz) in the present reactor design. The product contains gaseous hydrocarbons, syngas and oxygenates. No liquid hydrocarbons can be detected with the present reactor design. The oxygenates produced includes acetic acid, propanoic acid, ethanol and methanol. There exists an optimum feed ratio of CH4/CO2 to make the maximum selectivity of the objective oxygenate. The highest selectivity of acetic acid was 5.2% achieved at CH4 and CO2 conversions of 64.3% and 43.1%, respectively.
Methane, CO2, Oxygenates, Light hydrocarbons, Dielectric-barrier discharge
-
34浏览
-
0点赞
-
0收藏
-
0分享
-
211下载
-
0评论
-
引用
刘昌俊, Tao Jiang a, Chang-Jun Liu a, ), Ming-Fa Rao b, Chun-De Yao b, Guo-Liang Fan c
Fuel Processing Technology 73Ž2001.143-152,-0001,():
-1年11月30日
A diesel fuel additive has been synthesized from conversion of dimethyl ether(DME) using dielectric barrier dischargeŽDBD.plasma at atmospheric pressure and low temperatures. A high conversion of DME has been achieved. The product of such conversion is a mixture of hydrocarbons and oxygenates that can be used as high-performance diesel fuel additives. The maximum conversion of DME reached 47.2% with a selectivity of liquid product (a mixture of dimethoxy-containing hydrocarbons) more than 39.0% at 1208C and a 30 mlrmin flow rate of DME.
Dielectric-barrier discharges, Diesel fuel additives, Dimethyl ether, Dimethoxy propane, Dimethoxy ethane
-
23浏览
-
0点赞
-
0收藏
-
0分享
-
146下载
-
0评论
-
引用