Auteur Diane Hildebrandt
Documents disponibles écrits par cet auteur (12)
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Ngigi, Geoffrey K., Auteur ; Diane Hildebrandt, Auteur ; David Glasser, Auteur |A data weighting method derived from analysis of the distillation column design relation(s) is used on several experimental vapor−liquid equilibrium (VLE) sets of data for estimating the interaction pair parameters of two local-composition model[...]
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Simon T. Holland, Auteur ; Ronald Abbas, Auteur ; Diane Hildebrandt, Auteur |Currently employed short-cut design techniques have a tendency to be configuration-specific. Few can be applied to complex distillation configurations. In this work, we will demonstrate, in detail, the use of column profile maps (CPMs) for the c[...]
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Baraka Celestin Sempuga, Auteur ; Bilal Patel, Auteur ; Diane Hildebrandt, Auteur |Much of our energy reserves are locked in the chemical potential of chemicals such as fossil fuels. The majority of CO2 emissions caused by human activities come from the combustion of these fuels. Typically, the fuel is burned with oxygen (air)[...]
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Yali Yao, Auteur ; Diane Hildebrandt, Auteur ; David Glasser, Auteur |The effect of CO2 on Fischer−Tropsch synthesis (FTS) on a cobalt based catalyst had been investigated in a fixed-bed microreactor. Two feed gases, H2:CO:CO2 = 2:1:0 and H2:CO:CO2 = 3:0:1, were mixed in various proportions thus varying the ratio [...]
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Yali Yao, Auteur ; Xinying Liu, Auteur ; Diane Hildebrandt, Auteur |A series of low-temperature Fischer―Tropsch synthesis (FTS) experiments using a wide range of H2/CO/CO2 syngas mixtures have been performed to provide further insight into the effect of the CO2 on an iron-based catalyst during FTS. In comparison[...]
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David Ming, Auteur ; Diane Hildebrandt, Auteur ; David Glasser, Auteur |In this work, a graphical method of identifying opportunities for improving the production rate from batch reactors is presented. On the basis of this approach, a modification to the standard procedure of batch operation is also developed. It is[...]
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Xiaojun Lu, Auteur ; Diane Hildebrandt, Auteur ; Xinying Liu, Auteur |Conventional Fischer−Tropsch experiments were conducted to investigate the early stages (start-up) of the reaction of a TiO2-supported cobalt catalyst in a continuous stirred tank reactor and compared to the later stages. Thus, both short-term a[...]
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Xiaojun Lu, Auteur ; Xiaowei Zhu, Auteur ; Diane Hildebrandt, Auteur |When Fischer−Tropsch synthesis (FTS) reaction experiments were conducted in a gas−solid system with a TiO2-supported cobalt catalyst in a continuous stirred tank reactor (CSTR), we observed significant changes in the reaction rate and product se[...]
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Daniel A. Beneke, Auteur ; Diane Hildebrandt, Auteur ; David Glasser, Auteur |Column profile maps (CPMs) have recently been shown to be a useful tool in the design of distillation operations, especially complex configurations. CPMs are essentially a family of composition trajectories for a column section in a distillation[...]
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David Ming, Auteur ; Diane Hildebrandt, Auteur ; David Glasser, Auteur |An improved method of candidate attainable region (AR) construction, based on an existing bounding hyperplanes approach, is presented. The method uses a plane rotation about existing extreme points, rather than a plane translation, to eliminate [...]
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Xiaojun Lu, Auteur ; Diane Hildebrandt, Auteur ; Xinying Liu, Auteur |Conventional Fischer―Tropsch (FT) experiments were performed in both a continuously stirred tank reactor (CSTR) and a plug-flow reactor (PFR) on a TiO2-supported cobalt catalyst. The olefin/paraffin ratios for short-chain hydrocarbons (C2―C5) we[...]
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Baraka Celestin Sempuga, Auteur ; Diane Hildebrandt, Auteur ; Bilal Patel, Auteur |For a chemical process to be feasible, two levels of energy must be met: the heat and work requirements of the process. Whereas, for most processes, the heat requirement can easily be satisfied, supplying the amount of work needed is a major cha[...]
