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Oxidative Dehydrogenation of Ethane and Propane using Ni-Loaded Catalysts

使用负载镍催化剂进行乙烷和丙烷的氧化脱氢

基本信息

批准号：
18360382
负责人：
SUZUKI Toshimitsu
金额：
$ 10.7万
依托单位：
Kansai University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

项目摘要

Most important basic organic chemicals ethylene and propylene are commercially produced by energy consuming and less selective steam cracking of light hydrocarbons. In order to develop more energy saving and selective processes, catalytic oxidative dehydrogenation was investigated.As an active species of the catalyst, NiO was selected, and support material of NiO was exploited. MgO having high surface area was found to be an appropriate support and with 5 wt% loading of NiO on MgO, ethane conversion of 53% and ethylene selectivity of 62% were obtained at the reaction temperature of 600℃.Further studies on exploiting the support material of NiO, ZrO_2 was found to reduce the reaction temperature to 450℃. Additives of NiO-ZrO_2 catalyst were examined and SbOx and P_2O_5 were found to promote the catalytic activity and to increase selectivity to ethylene at 550℃ Ethane conversion of 35% and ethylene selectivity of 64% were obtained with the addition of 0.7 wt% SbOx.Addition of 0.52 wt% of P to Ni0-Zr02 catalyst, afforded ethane conversion of 33% and ethylene selectivity of 62% at 450℃, and an increase in the ratio of ethane/oxygen increased the ethane conversion to 41% with the selectivity to ethylene of 65%. The results are one of the highest selectivity to ethylene from ethane without dilution of the feed.Application of this catalyst system to the oxidative dehydrogenation to propane was not successful. Catalyst preparation was changed to the co-precipitation method using an aqueous solution of Ni(NO_3)_2 and ZrOCl_2 by adding aqueous ammonia. The catalyst exhibited moderate activity in the dehydrogenation of propane to propylene at 400℃.Transient response technique was developed to understand dehydrogenation mechanism using ethylbenzene as a substrate.

大多数重要的基本有机化学品乙烯和丙烯是通过消耗能量且选择性较低的轻质烃的蒸汽裂解来商业生产的。为了开发更节能、更有选择性的催化氧化脱氢工艺，选择了NiO作为催化剂的活性物种，并开发了NiO载体材料。MgO具有较高的比表面积，当NiO负载量为MgO的5wt%时，在600℃的反应温度下，乙烷转化率为53%，乙烯选择性为62%，进一步研究NiO、ZrO_2载体材料可将反应温度降低到450℃。考察了NiO-ZrO_2催化剂的添加剂，发现SbOx和P_2O_5能提高催化剂的活性和乙烯选择性，在550℃时，添加0.7wt%SbOx时，乙烷转化率为35%，乙烯选择性为64%，添加0.52wt%P_2O_5对NiO-ZrO_2催化剂的活性和乙烯选择性有明显的提高。在450℃时，乙烷转化率为33%，乙烯选择性为62%，提高乙烷/氧气比，乙烷转化率为41%，乙烯选择性为65%。结果表明，在不稀释原料的情况下，该催化剂具有较高的乙烷制乙烯选择性，但在丙烷氧化脱氢反应中的应用并不成功。催化剂的制备改为共沉淀法，使用Ni（NO_3）_2和ZrOCl_2的水溶液，通过加入氨水。该催化剂在400℃下对丙烷脱氢制丙烯具有中等活性。

项目成果

期刊论文数量（0）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Ni-Sb/ZrO_2触媒を用いるエタンの酸化的脱水素反応

Ni-Sb/ZrO_2催化剂乙烷氧化脱氢

DOI：
发表时间：
2007
期刊：
影响因子：
0
作者：
崎谷一貴;中村健一;池永直樹;三宅孝典;鈴木俊光
通讯作者：
鈴木俊光

Elucidation of promoting effect of CO_2 in the dehydrogenation of Ethylbenzene by using pulsed reaction technique

脉冲反应技术阐明CO_2对乙苯脱氢的促进作用

DOI：
发表时间：
2007
期刊：
影响因子：
0
作者：
K. Saito;K. Okuda;N. Ikenaga;T. Miyake;T. Suzuki
通讯作者：
T. Suzuki

「研究成果報告書概要(和文)」より

摘自《研究结果报告摘要（日文）》

DOI：
发表时间：
2005
期刊：
影响因子：
0
作者：
Kawauchi;et. al.;Nishimura et al.;Dezawa et al.;Yoshizawa et al.;星野幹雄;星野幹雄
通讯作者：
星野幹雄

Ni・Sb/ZrO_2触媒を用いるエタンの酸化的脱水素反応

Ni·Sb/ZrO_2催化剂乙烷氧化脱氢

DOI：
发表时间：
2007
期刊：
影响因子：
0
作者：
崎谷一貴;中村健一;池永直樹;三宅孝典;鈴木俊光
通讯作者：
鈴木俊光

Oxidative dehydrogenation of propane over Ni-MO/ZrO_2

Ni-MO/ZrO_2 上丙烷氧化脱氢

DOI：
发表时间：
2006
期刊：
Abstracts of 5th Tokyo Conference on Advanced Catalytic Science and Technology
影响因子：
0
作者：
A.Kannno;K.Nakamura;N.Ikenaga;T.Miyake;T.Suzuki
通讯作者：
T.Suzuki