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Journal of Rare Earths 2010年第S1期28卷 316-321页

作者：程显名王华魏永刚李孔斋祝星 Faculty of Chemical Engineering Kunming University of Science and Technology Faculty of Metallurgy and Energy Engineering Kunming University of Science and Technology

A series of Ce-Fe-Zr-O(x)/MgO(x denotes the mass fraction of Ce-Fe-Zr-O,x=10%,15%,20%,25%,30%) complex oxide oxygen carriers for selective oxidation of methane to synthesis gas were prepared by the co-precipitation method.The catalysts were characterized by means of X-ray diffraction and h2-TPR.The XRD measurements showed that MgFeO4 particles were formed and Fe2O3 particles well dispersed on the oxygen carriers.The reactions between methane diluted by argon(10% Ch4) and oxygen carriers were investigated.Suitable content of CeO2/Fe2O3/ZrO2 mixed oxides could promote the reaction between methane and oxygen carriers.There are mainly two kinds of oxygen of carriers:surface lattice oxygen which had higher activity but lower selectivity,and bulk lattice oxygen which had lower activity but higher selectivity.Among all the catalysts,Ce-Fe-Zr-O(20%)/MgO exhibited the best catalytic performance.The conversion of the methane was above 56%,and the selectivity of the h2 and co were both above 93%,the ratio of h2/co was stable and approached to 2 for a long time.

关键词： oxygen carriers lattice oxygen h2/co selectivity activity rare earths

Modeling and optimization of industrial Fischer–Tropsch synthesis with the slurry bubble column reactor and iron-based catalyst

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Chinese Journal of Chemical Engineering 2018年第5期26卷 1102-1109页

作者： Chufu Li National Institute of Clean-and-Low-Carbon Energy Shenhua Group Co.Ltd.

To optimize industrial Fischer–Tropsch(FT) synthesis with the slurry bubble column reactor(SBCR) and ironbased catalyst, a comprehensive process model for FT synthesis that includes a detailed SBCR model, gas liquid separation model, simplified co_2 removal model and tail gas cycle model was developed. An effective iteration algorithm was proposed to solve this process model, and the model was validated by industrial demonstration experiments data(SBCR with 5.8 m diameter and 30 m height), with a maximum relative error b 10% for predicting the SBCR performances. Subsequently, the proposed model was adopted to optimize the industrial SBCR performances simultaneously considering process and reactor parameters variations. The results show that C_(5+) yield increases as catalyst loading increases within 10–70 ton and syngas h_2/co value decreases within1.3–1.6, but it doesn't increase obviously when the catalyst loading exceeds 45 ton(about 15 wt% concentration).higher catalyst loading will result in higher difficulty for wax/catalyst separation and higher catalyst cost. Therefore, the catalyst loading(45 ton) is recommended for the industrial demonstration SBCR operation at syngas h_2/co = 1.3, and the C_(5+) yield is about 402 ton" per day, which has an about 16% increase than the industrial demonstration run result.

关键词：催化剂分离技术合成反应堆工业优化水泡泥浆 h2/co

The green fuel from carbon waste： optimization and product selectivity model studies

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International Journal of coal Science & Technology 2018年第3期5卷 399-410页

作者： hossein Atashi Fatemeh Rezaeian Ali Akbar Mirzaei Department of Chemical Engineering University of Sistan and Baluchestan Zahedan Iran Department of Chemistry University of Sistan and Baluchestan Zahedan Iran

Increase in greenhouse gases, has made scientists to substitute alternative fuels for fossil fuels. Nowadays, converting biomass into liquid by Fischer–Tropsch synthesis is a major concern for alternative fuels (gasoline, diesel etc.). Selectivity of Fischer–Tropsch hydrocarbon product (green fuel) is an important issue. In this study, the experimental data has been obtained from three factors; temperature, h2/co ratio and pressure in the fixed bed micro reactor. T = 543–618 (K), P = 3–10 (bar), h2/co = 1–2 and space velocity = 4500 (1/h) were the reactor conditions. The results of product modeling for methane (Ch4), ethane (C2h6), ethylene (C2h4) and co conversion with experimental data were compared. The effective parameters and the interaction between them were investigated in the model. h2/co ratio and pressure and interaction between pressure and h2/co in ethane selectivity model and co conversion and interaction between temperature and h2/co ratio in methane selectivity model and ethylene gave the best results. To determine the optimal conditions for light hydrocarbons, ANOVA and RSM were employed. Finally, products optimization was done and results were concluded.

关键词：产品优化选择模型燃料 h2/co 废物温室气体生物资源相互作用

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生物油部分氧化气化制备合成气研究

燃料化学学报 2012年第7期40卷 816-821页

作者：李洁熊莲丁飞陈新德陈勇中国科学院广州能源研究所中国科学院可再生能源与天然气水合物重点实验室广东广州510640 中国科学院广州能源研究所广东广州510640 中国科学院广州分院广东广州510640

以生物油为原料,在常压和空气氛围下进行非催化部分氧化气化实验制备合成气,考察了气化温度、氧油比对合成气形成特性及合成气品质的影响,并对生物油非催化部分氧化气化制备合成气的主要反应过程进行了讨论。结果表明,升高温度可以促进... 详细信息

以生物油为原料,在常压和空气氛围下进行非催化部分氧化气化实验制备合成气,考察了气化温度、氧油比对合成气形成特性及合成气品质的影响,并对生物油非催化部分氧化气化制备合成气的主要反应过程进行了讨论。结果表明,升高温度可以促进生物油经非催化部分氧化气化制合成气过程中相关转化反应的进行,合适的氧油比有利于合成气的增加。当温度为1 050℃,空气量为0.2 L/min,进料量为72 g/h时,生物油经部分氧化产生的气体中h2含量最高,Ch4、co和co2很少;h2/co和h2/(co+co2)均达到最大值,分别为4.3和3.2。

关键词：生物油气化部分氧化 h2/co

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木屑炭水蒸气催化气化制取合成气研究

太阳能学报 2020年第2期41卷 20-26页

作者：宁思云应浩徐卫尹航朱立贾爽中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室南京210042

以木屑炭为原料,K2co3作为催化剂,以固定床气化炉为实验设备,进行水蒸气催化气化木屑炭的探究。考察木屑炭水蒸气气化的炭转化率、产氢率、气体组成体积分数和h2/co比值随K2co3催化剂质量分数(0~8%)、水蒸气流量(0.15~0.35 g/(min·g))... 详细信息

以木屑炭为原料,K2co3作为催化剂,以固定床气化炉为实验设备,进行水蒸气催化气化木屑炭的探究。考察木屑炭水蒸气气化的炭转化率、产氢率、气体组成体积分数和h2/co比值随K2co3催化剂质量分数(0~8%)、水蒸气流量(0.15~0.35 g/(min·g))、气化温度(800~950℃)变化的规律。实验结果表明:K2co3催化剂可显著提升碳转化率及产氢率,K2co3质量分数为8%时,碳转化率和产氢率分别达到86.3%和125.6 g/kg,同时合成气中co体积分数显著增加,h2/co比值降至2.43。增加水蒸气流量,合成气中h2含量显著增大,h2/co比值随之增大。温度可有效促进炭气化过程,950℃时碳转化率和产氢率分别达到84.3%和127.1 g/kg,但合成气中co体积分数增大,h2/co比值降至2.48。实验得到h2/co比值在2.43~5.16范围的合成气。气化反应温度在900℃、水蒸气0.2 g/(min·g)、K2co3质量分数3%时,碳转化率可达80.4%,产氢率109.6 g/kg,合成气中(h2+co)体积分数82.4%,同时h2/co比值高达3.05。

关键词：木屑炭催化气化合成气 h2/co

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合成气流化床甲烷化反应过程的研究(英文)

Chinese Journal of Chemical Engineering 2015年第1期23卷 86-92页

作者：刘姣崔佃淼余剑苏发兵许光文 State Key Laboratory of Multi-phase complex Systems Institute of Process Engineering Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences

The performance characteristics of isothermal fluidized bed syngas methanation for substitute natural gas are investigated over a self-made Ni–Mg/Al2O3 catalyst. Via atmospheric methanation in a laboratory fluidized bed reactor it was clarified that the co conversion varied in 5% when changing the space velocity in 40–120 L·g-1·h-1but the conversion increased obviously by raising the superficial gas velocity from 4 to12.4 cm·s-1. The temperature at 823 K is suitable for syngas methanation while obvious deposition of uneasyoxidizing Cγoccurs on the catalyst at temperatures around 873 K. From a kinetic aspect, the lowest reaction temperature is suggested to be 750 K when the space velocity is 60 L·g-1·h-1. Raising the h2/co ratio of the syngas increased proportionally the co conversion and Ch4 selectivity, showing that at enough high h2/co ratios the active sites on the catalyst are sufficient for co adsorption and in turn the reaction with h2 for forming Ch4.Introducing co2 into the syngas feed suppresses the water gas shift and Boudouard reactions and thus increased h2 consumption. The ratio of co2/co in syngas should be better below 0.52 because varying the ratio from 0.52 to0.92 resulted in negligible increases in the h2 conversion and Ch4 selectivity but decreased the Ch4 yield.Introducing steam into the feed gas affected little the co conversion but decreased the selectivity to Ch4. The tested Ni–Mg/Al2O3 catalyst manifested good stability in structure and activity even in syngas containing water vapor.

关键词：氧化铝催化剂流化床反应器煤气甲烷化 Al2O3 性能特点 h2/co 最低温度二氧化碳转化

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无助剂沉淀铁催化剂上F-T合成的研究

化学反应工程与工艺 2004年第4期20卷 343-347页

作者：王兴军周志杰任海平王辅臣于遵宏华东理工大学洁净煤技术研究所上海200237

研究了高温条件下无助剂沉淀铁催化剂在固定床积分反应器中的F-T合成反应。实验结果表明在实验条件下,随着温度的升高,co和h2的转化率明显增大;而空速的增加,h2和co的转化率下降。在压力2.6MPa,空速0.86L·h-1·(g-Fe)-1,h2／co=2／3,温... 详细信息

研究了高温条件下无助剂沉淀铁催化剂在固定床积分反应器中的F-T合成反应。实验结果表明在实验条件下,随着温度的升高,co和h2的转化率明显增大;而空速的增加,h2和co的转化率下降。在压力2.6MPa,空速0.86L·h-1·(g-Fe)-1,h2／co=2／3,温度260-280℃时,产物中的烃类主要是C5-11,约占烃类总质量的50％,其次是C2-4,约占烃类总质量的25％,再次是C12+,约占烃类总质量的18％,C1占7％。

关键词： F-T合成沉淀铁催化剂助剂转化率空速 h2/co 烃类总质量积分实验条件

Synthesis and Characterization of co/Mo Bimetallic Nanocatalysts

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材料科学与工程（中英文A版） 2011年第3X期1卷 390-397页

作者： Sardar Ali Noor Asmawati Mohd Zabidi Duvvuri Subbarao Department of Chemical Engineering Universiti Teknologi PETRONAS Bandar Seri lskandar Tronoh 31750 Perak Malaysia Department of Fundamental and Applied Sciences Universiti Teknologi PETRONAS Bandar Seri lskandar Tronoh 31750 Perak Malaysia

cobalt/Molybdenum bimetallic nanocatalysts were prepared by wet impregnation method on alumina support. Samples 22 adsorption-desorption analyses. Fischer-Tropsch synthesis (FTS) was carried out in a fixed-bed microreactor at 543 K and 1 atm, with h2/co = 2 v/v and space velocity, SV = 12 L/g·h. The physicochemical properties and the FTS performance of the bimetallic nanocatalysts were analyzed and compared with the monometallic cobalt and molybdenum nanocatalysts. h2-TPR analysis of cobalt nanocatalyst indicated three temperature regions at 490 οC (low temperature), 710 οC (medium temperature) and 820 οC (high temperature). The incorporation of molybdenum into cobalt nanocatalysts increased the percentage of species reduced at low temperature. It also increased the average size of metal nanoparticles and enhanced hydrogen chemisorptions but decreased the degree of reduction of bimetallic nanocatalysts compared to those of the monometallic nanocatalysts. Bimetallic nanocatalysts enhanced the %co conversion in the FTS. Among the nanocatalysts studied, bimetallic nanocatalyst with the composition of 50co:50Mo resulted in the highest %co conversion (42.6%), while the %co conversion was 28.3% and 24%, respectively for the monometallic cobalt and molybdenum nanocatalysts.

关键词：纳米催化剂双金属金属钴表征合成 h2/co co转化率透射电子显微镜

Investigation on gasification of glycerol and palm shell mixed wastes by fluidization system

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Journal of Chemistry and Chemical Engineering 2009年第8期3卷 50-56页

作者： Viboon Sricharoenchaikul Kanit Soongprasit Sildara Thassaprichayanont Duangduen Atong Faculty of Engineering Chulalongkorn University Bangkok 10330 Thailand National Metal and Materials Technology Center 114 Thailand National Science Park Pathumthani 12120 Thailand

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自热转化制合成气工艺应用

石油与天然气化工 2004年第4期33卷 250-252,258页

作者：彭志斌巴陵石油化工有限责任公司

介绍了自热转化工艺 (ATR)的基本原理和技术特点 ,以及在工业应用中的改进和完善。该工艺具有流程简单、操作灵活、h2 /co可调等特点。

关键词：工艺自热合成气 h2/co 化工工业应用应用前景热转化天然气流程