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9篇 您的检索式:作者名="RUDOLPH Victor"
    题名 作者 年代 出处 被引量
1模拟CO2埋藏不同煤级煤孔隙结构变化实验研究显示文摘使用高压超临界CO2地球化学反应器在实验室模拟CO2在地下煤层的埋藏过程,反应器中的温度为40℃,压力为9.8MPa,反应时间为72h,通过氦比重仪和压汞仪对不同煤级煤的孔隙结构变化进行了研究.结果表明:经过超临界CO2-H2O的作用后,无烟煤的真密度从1.51g/cm3增加到1.59g/cm3,其余几种煤真密度变化不大,视密度均有减小趋势,其中褐煤和瘦煤减小幅度为0.1g/cm3;褐煤总孔容变化最大,增加主要表现在大孔阶段,增幅为85%,孔隙度增幅达118%,其余煤种的总孔容和孔隙度也有不同程度增高.CO2的埋藏过程对中低煤级的影响主要是其大中孔,而对高煤级主要影响其微孔发育,无烟煤微孔孔容的增大使得煤的表面积进一步增大,从未处理的24.3m2/g增加到27.6m2/g,从而对气体的吸附能力将越来越强;对退汞曲线的滞后性分析表明,CO2的埋藏过程对'墨水瓶'孔隙度将产生一定的影响.刘长江 桑树勋 WANG Guo-xiong RUDOLPH Victor 2010中国矿业大学学报2010,39,4:5
2Adsorption and desorption on coals for CO_2 sequestration显示文摘Adsorption and desorption of carbon dioxide, methane and other gases on coals has been investigated experimentally using representative Zhongliangshan coals. Gas adsorption is one of the major concerns for both CO2 sequestration and methane recovery processes. The experiments were carried out using both single and multi-component mixtures at 25 ℃ and 30 ℃ with the highest pressure of 12 MPa. The coal was under moisture equilibrated conditions. This provides experimental data from which a predictive assessment of CO2 sequestration and/or methane recovery can be conducted. The results show that for pure gasses the CH4 adsorption capacity is higher than the N2 adsorption capacity but lower than the CO2 adsorption capacity. Injection of CO2 or other gases into the coal significantly affects CH4 desorption. This allows the enhancement of CH4 recovery from the coals, thus supplying more clean energy while sequestering significant amounts of CO2 thereby reducing the greenhouse effect from human beings.WANG Zuo-tang FU Zhen-kun ZHANG Bang-an WANG Guo-xiong RUDOLPH Victor HUO Li-wen 2009Mining Science and Technology2009,19,1:3
3A phase inversion polymer coating to prevent swelling and spalling of clay fines in coal seam gas wells显示文摘Lei Ge Christopher Hamilton Rahmah Tasha Febrina Victor Rudolph Thomas E. Rufford 2018International Journal of Coal Science & Technology2018,5,2:3
4Evaluation of coal structure and permeability with the aid of geophysical logging technology显示文摘Xuehai Fu Yong Qin Geoff G.X. Wang Victor Rudolph 2009Fuel2009,,11:1
5Phosphate removal from wastewater using red mud显示文摘Weiwei Huang Shaobin Wang Zhonghua Zhu Li Li Xiangdong Yao Victor Rudolph Fouad Haghseresht 2008Journal of Hazardous Materials2008,,1:1
6Immersion frying for the thermal drying of sewage sludge: An economic assessment显示文摘Carlos Peregrina Victor Rudolph Didier Lecomte Patricia Arlabosse 2007Journal of Environmental Management2007,,1:1
7NOx和SOx对电催化还原高炉尾气CO2性能的影响显示文摘如何低成本地降低炼铁过程中的CO2排放是钢铁企业亟待解决的重要课题。电催化还原CO2技术可将CO2转化成可利用的燃料或产品,有望实现低成本降低CO2排放。通过采用含一定浓度的KNO2、KNO3和K2SO3的KHCO3电解液,模拟生产烟气中较高NOx和SOx浓度下在电解液中溶解反应生成的产物,研究了其对法拉第效率FECO和FEH2随电催化时间变化的影响。结果表明,KNO2、KNO3和K2SO3都会对电催化还原CO2性能造成不利影响,且相较SOx,虽NOx溶解产物对电催化还原CO2效率的降低影响更大,但可以提高电催化稳定性。下一步应重点研究气相NOx和SOx对催化剂的影响,以及通过催化剂和电极开发来提高反应器对烟气的耐受性。徐泽霖 张怀东 吴宇明 李梦然 Sahil Garg Thomas E.Rufford 李立业 Victor Rudolph 王国雄 2020河北冶金2020,,12:0
8Assessment of postcombustion carbon capture technologies for power generation显示文摘A significant proportion of power generation stems from coal-combustion processes and accordingly represents one of the largest point sources of CO_(2)emissions worldwide.Coal power plants are major assets with large infrastructure and engineering units and an operating life span of up to 50 years.Hence,any process design modification to reduce greenhouse gas emissions may require significant investment.One of the best options to utilize existing infrastructure is to retrofit the power station fleet by adding a separation process to the flue gas,a practice known as postcombustion capture(PCC).This review examines the recent PCC development and provides a summary and assessment of the state of play in this area and its potential applicability to the power generation industry.The major players including the various institutes,government,and industry consortia are identified along with flue gas PCC demonstration scale plants.Of the PCC technologies reviewed,amine-based absorption is preeminent,being both the most mature and able to be adapted immediately,to the appropriate scale,for power station flue gas with minimal technical risk.Indeed,current commercial applications serve niches in the merchant CO_(2)market,while a substantial number of smaller scale test facilities are reported in the literature with actual CO_(2)capture motivated demonstrations now commencing.Hybrid membrane/absorption systems,also known as membrane contactors,offer the potential for the lowest energy requirements,possibly 10%of current direct scrubbers but are at an early stage of development.Other methods being actively pursued as R&D projects include solid absorbents,solid adsorbents,gas membrane separators,and cryogenic separation.The variety and different maturities of these competing technologies make technical comparison largely subjective,but useful insights could be gained through the development and application of econometric techniques such as‘real options’within this context.Despite these limitations,it is clear from this review that amine scrubbing is likely to be adapted first into the existing power station fleet,while less mature technologies will grow and become integrated with the development of future power stations.Mikel C.DUKE Bradley LADEWIG Simon SMART Victor RUDOLPH João C.Diniz da COSTA 2010Frontiers of Chemical Science and Engineering2010,4,2:0
9模拟CO_2地质埋藏条件下无烟煤微孔超微孔变化特征显示文摘CO2地质埋藏过程中的煤体孔隙演化是影响CO2地质埋藏的主要问题之一,该研究以"高压超临界CO2地球化学反应器"为实验室模拟平台,对CO2在地下煤层的储存过程进行模拟;以40℃,9.8 MPa,72 h为模拟条件,通过氦比重仪和压汞仪对不同粒度的无烟煤孔隙结构变化进行研究。结果表明,在经过超临界CO2-H2O的作用后,无烟煤的真密度和视密度均呈现增大趋势,其中增幅最大的4~8 mm样品从1.500 g/cm3增加到1.590 g/cm3;总孔容变化较为明显,增加主要表现在4~8 mm样品,增幅达162%,孔隙度增幅则达196%,其余粒度样品的总孔容和孔隙度也有不同程度增高。CO2的埋藏过程对无烟煤的影响主要表现在微孔和超微孔隙的发育,不同粒度样品的超微孔隙变化均较大,从而直接导致对气体的吸附能力越来越强。刘长江 桑树勋 王国雄 Victor Rudolph 2014西北大学学报(自然科学版)2014,44,6:0
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