Search Results - "Krishna, Rajamani"

Screening metal–organic frameworks for mixture separations in fixed-bed adsorbers using a combined selectivity/capacity metric by Krishna, Rajamani

“…The separation performance of a fixed bed adsorption unit is dictated by a combination of two metrics: selectivity and uptake capacity. Most commonly, the…”
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Uphill diffusion in multicomponent mixtures by Krishna, Rajamani

“…Molecular diffusion is an omnipresent phenomena that is important in a wide variety of contexts in chemical, physical, and biological processes. In the…”
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The Maxwell–Stefan description of mixture diffusion in nanoporous crystalline materials by Krishna, Rajamani

“…•There are two types of coupling for mixture diffusion.•Correlations cause slowing-down of the more mobile partners in membranes.•Thermodynamic coupling causes…”
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Describing the Diffusion of Guest Molecules Inside Porous Structures by Krishna, Rajamani

“…The design and development of many emerging separation and catalytic process technologies require a proper quantitative description of diffusion of mixtures of…”
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Using the Maxwell-Stefan formulation for highlighting the influence of interspecies (1−2) friction on binary mixture permeation across microporous and polymeric membranes by Krishna, Rajamani

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Metrics for Evaluation and Screening of Metal–Organic Frameworks for Applications in Mixture Separations by Krishna, Rajamani

“…For mixture separations, metal–organic frameworks (MOFs) are of practical interest. Such separations are carried out in fixed bed adsorption devices that are…”
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Adsorptive separation of CO2/CH4/CO gas mixtures at high pressures by Krishna, Rajamani

“…[Display omitted] ► Isotherm fitting should be done with absolute, not excess, loadings. ► The selectivity and capacity metrics do not go hand-in-hand. ►…”
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Two-Dimensional Covalent Organic Frameworks for Carbon Dioxide Capture through Channel-Wall Functionalization by Huang, Ning, Chen, Xiong, Krishna, Rajamani, Jiang, Donglin

“…Ordered open channels found in two‐dimensional covalent organic frameworks (2D COFs) could enable them to adsorb carbon dioxide. However, the frameworks’ dense…”
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A robust Th-azole framework for highly efficient purification of C2H4 from a C2H4/C2H2/C2H6 mixture by Xu, Zhenzhen, Xiong, Xiaohong, Xiong, Jianbo, Krishna, Rajamani, Li, Libo, Fan, Yaling, Luo, Feng, Chen, Banglin

“…Separation of C 2 H 4 from C 2 H 4 /C 2 H 2 /C 2 H 6 mixture with high working capacity is still a challenging task. Herein, we deliberately design a…”
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Synergistic and Antisynergistic Intracrystalline Diffusional Influences on Mixture Separations in Fixed-Bed Adsorbers by Krishna, Rajamani

“…Separations of mixtures in fixed-bed adsorbers are influenced by factors such as (1) selectivity of adsorption, S ads, (2) diffusional time constants, Đ i /r c…”
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Serpentine diffusion trajectories and the Ouzo effect in partially miscible ternary liquid mixtures by Krishna, Rajamani

“…This work investigates the transient equilibration process when partially miscible ternary liquid mixtures of two different compositions are brought into…”
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Tailor-Made Pore Surface Engineering in Covalent Organic Frameworks: Systematic Functionalization for Performance Screening by Huang, Ning, Krishna, Rajamani, Jiang, Donglin

“…Imine-linked covalent organic frameworks (COFs) were synthesized to bear content-tunable, accessible, and reactive ethynyl groups on the walls of…”
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Fundamental Insights into Intracrystalline Diffusional Influences on Mixture Separations in Fixed Bed Adsorbers by Rajamani Krishna

“…This article has the objective of elucidating the variety of factors that quantify influences of intracrystalline diffusion on mixture separations in fixed bed…”
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Mixed Metal–Organic Framework with Multiple Binding Sites for Efficient C2H2/CO2 Separation by Gao, Junkuo, Qian, Xuefeng, Lin, Rui‐Biao, Krishna, Rajamani, Wu, Hui, Zhou, Wei, Chen, Banglin

“…The separation of C2H2/CO2 is particularly challenging owing to their similarities in physical properties and molecular sizes. Reported here is a mixed…”
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Rational Design of Microporous MOFs with Anionic Boron Cluster Functionality and Cooperative Dihydrogen Binding Sites for Highly Selective Capture of Acetylene by Zhang, Yuanbin, Hu, Jianbo, Krishna, Rajamani, Wang, Lingyao, Yang, Lifeng, Cui, Xili, Duttwyler, Simon, Xing, Huabin

“…Separation of acetylene (C2H2) from carbon dioxide (CO2) or ethylene (C2H4) is important in industry but limited by the low capacity and selectivity owing to…”
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One‐Step Ethylene Purification from Ternary Mixtures in a Metal–Organic Framework with Customized Pore Chemistry and Shape by Ding, Qi, Zhang, Zhaoqiang, Liu, Yulong, Chai, Kungang, Krishna, Rajamani, Zhang, Sui

“…Adsorptive separation is an energy‐efficient technology for the separation of C2 hydrocarbons. However, it remains a critical problem to directly produce…”
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Interpenetration Symmetry Control Within Ultramicroporous Robust Boron Cluster Hybrid MOFs for Benchmark Purification of Acetylene from Carbon Dioxide by Wang, Lingyao, Sun, Wanqi, Zhang, Yuanbin, Xu, Nuo, Krishna, Rajamani, Hu, Jianbo, Jiang, Yunjia, He, Yabing, Xing, Huabin

“…The separation of C2H2/CO2 is an important process in industry but challenged by the trade‐off of capacity and selectivity owning to their similar physical…”
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Tuning Pore Polarization to Boost Ethane/Ethylene Separation Performance in Hydrogen‐Bonded Organic Frameworks by Zhou, Yunzhe, Chen, Cheng, Krishna, Rajamani, Ji, Zhenyu, Yuan, Daqiang, Wu, Mingyan

“…Hydrogen‐bonded organic frameworks (HOFs) show great potential in energy‐saving C2H6/C2H4 separation, but there are few examples of one‐step acquisition of…”
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Engineering Pore Environments of Sulfate‐Pillared Metal‐Organic Framework for Efficient C2H2/CO2 Separation with Record Selectivity by Liu, Xing, Zhang, Peixin, Xiong, Hanting, Zhang, Yan, Wu, Ke, Liu, Junhui, Krishna, Rajamani, Chen, Jingwen, Chen, Shixia, Zeng, Zheling, Deng, Shuguang, Wang, Jun

“…Engineering pore environments exhibit great potential in improving gas adsorption and separation performances but require specific means for acetylene/carbon…”
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Ethane/ethylene separation in a metal-organic framework with iron-peroxo sites by Li, Libo, Lin, Rui-Biao, Krishna, Rajamani, Li, Hao, Xiang, Shengchang, Wu, Hui, Li, Jinping, Zhou, Wei, Chen, Banglin

“…The separation of ethane from its corresponding ethylene is an important, challenging, and energy-intensive process in the chemical industry. Here we report a…”
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