molecular sieve dewatering

molecular sieve dewatering

Molecular Sieve Appliion Deep Dewatering Of Natural Gas Apr 17 2019 At present the main natural gas deep dewatering device at home and abroad is the use of synthetic fluorspar molecular sieves to strongly adsorb water vapor molecules in the gas to achieve deep dehydration .

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EXPERIMENTAL STUDYING ON GAS DEWATERING BY

Download Citation | EXPERIMENTAL STUDYING ON GAS DEWATERING BY MOLECULAR SIEVE | Gas dehydration is a common process in gas treatment plant, because water and hydrocarbons can form hydrates, which ...

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Xintao Molecular Sieves for Natural Gas Grying

2021-9-7 · Xintao Molecular Sieves for Natural Gas Grying A t present, the main natural gas deep dewatering device at home and abroad is the use of synthetic fluorspar molecular sieves to strongly adsorb water vapor molecules in the gas to achieve deep dehydration.

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Hydrophilic membranes to replace molecular sieves in ...

2014-11-5 · Molecular sieves are used as adsorbent for gases and liquids, where e.g. a water molecule may be small enough to enter the pores while larger molecules are not: water is trapped and retained into the pores of the molecular sieve, hence acting as a desiccant. A molecular sieve can adsorb water up to 22% of its own weight .

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Experimental studies on 3A and 4A zeolite molecular

2015-1-1 · The selected cycles are presented in Table 3, while Fig. 9 displays the values q d for zeolite molecular sieve 3A used for ethanol dewatering (cycles 1 through 9, and 17 through 28) and for n-propanol dewatering (cycles 10 through 16), and for zeolite molecular sieve 4A used for n-butanol dewatering. Download : Download high-res image (150KB)

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Modeling of regeneration stage of 3A and 4A zeolite ...

The objective of this work is modeling and experimental studies on the thermal regeneration of the 3A and 4A zeolite molecular sieves used for dewatering of liquid aliphatic alcohols: ethanol, propanol and butanol in temperature swing adsorption (TSA) process. Tests were carried out on a zeolite adsorbent fixed bed of 1270 g (3A) or 1130 g (4A ...

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Experimental studies on 3A and 4A zeolite molecular

DTA-TGA investigations, carried out in the range of temperature 20–1000 °C revealed that water removing from 3A zeolite molecular sieve takes place up to 400 °C and from 4A up to 500 °C. However, in temperatures higher than 240 °C (3A zeolite) and 230 °C (4A zeolite) decrease of the water desorption rate was observed.

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Modeling of regeneration stage of 3A and 4A zeolite ...

2018-4-1 · In process modeling, the heat of adsorption ΔH a for water vapor-zeolite molecular sieve 3A system was taken from the data by Kupiec et al. and for the system with molecular sieve 4A it was computed from the Toth isotherm . 4. Mathematical model of zeolite molecular sieves regeneration4.1.

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改进的分子筛脱水装置在页岩气脱水中的应用-Application of ...

Key words: molecular sieve dehydration shale gas isobaric downstream regeneration 您是本站第 10478575 位访问者! 版权所有:《石油与天然气化工》编辑部 蜀ICP备19026982号-1

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High-performance carbon molecular sieve

2019-3-1 · Ultrathin (∼200 nm) and defect-free carbon molecular sieve (CMS) membranes were successfully fabricated on the inner surface of hierarchically structured porous supports (γ-Al2O3 layer coated α-Al2O3 tubes) via pyrolysis of a polyimide

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Molecular sieve application - deep dewatering of natural gas

2019-4-17 · Molecular Sieve Application - Deep Dewatering Of Natural Gas Apr 17, 2019 At present, the main natural gas deep dewatering device at home and abroad is the use of synthetic fluorspar molecular sieves to strongly adsorb water vapor molecules in the gas to achieve deep dehydration.

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EXPERIMENTAL STUDYING ON GAS DEWATERING BY

Download Citation | EXPERIMENTAL STUDYING ON GAS DEWATERING BY MOLECULAR SIEVE | Gas dehydration is a common process in gas treatment plant, because water and hydrocarbons can form hydrates, which ...

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Hydrophilic membranes to replace molecular sieves in ...

The distillation and molecular sieve operations consume most of the total energy used, with the steam consumption currently being ~1.8 kg/kg ethanol, including 0.5 kg/kg ethanol in the final ...

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CN1095685C - Technology for dewatering organic liquid ...

The present invention provides a new technology for removing water in organic liquid compounds of acid amides or ketones by using a molecular sieve method. Organic liquid compounds of acidamides or ketones with 0.2% to 0.5% of water enter a dewatering tower provided with a molecular sieve of 3A degrees to 5A degrees from a storage tank and then flow into a receiving tank, the dewatering tower ...

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Supporting information separation and solvents

2019-3-1 · Supporting information High-performance carbon molecular sieve membranes for gas separation and solvents dewatering by pervaporation P. H. Tchoua Ngamou*a,b, M. E. Ivanova a,b, O. Guillon a,b and W.A. Meulenberg a,b,c aForschungszentrum Jülich GmbH, Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1), D-52425 Jülich, Germany.

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US6582607B2 - Method of dewatering organic liquids ...

Process for dewatering organic liquids admixed with water wherein the admixture is brought into contact with a molecular sieve. The moleculat sieve is pretreated so as to reduce its acid site concentration and attain an ammonia TPD value of 18 mmol/g or less prior to contact with the admixture. The present invention relates to a process for dewatering organic liquids admixed with water, said ...

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Molecular sieve membranes: From 3D zeolites to 2D MOFs

2018-7-19 · Molecular sieve membranes: From 3D zeolites to 2D MOFs Yanshuo Li *, Weishen Yang 1. Introduction Gas separation with membranes is an energy efficient and environmentally friendly alternative to cryogenic, adsorptive or absorptive gas separation processes. Moreover, membranes units can be integrated easily into other separation and reac-

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High-performance carbon molecular sieve

2019-3-1 · Ultrathin (∼200 nm) and defect-free carbon molecular sieve (CMS) membranes were successfully fabricated on the inner surface of hierarchically structured porous supports (γ-Al2O3 layer coated α-Al2O3 tubes) via pyrolysis of a polyimide

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宁波大学—先进分离材料团队 | 服务项目

Unlike amorphous carbonaceous molecular sieves, crystalline zeolites contain uniformly sized pores of molecular dimensions, which makes them ideal candidates for molecular sieve membranes. The last two decades have witnessed continuous progress in the synthesis of zeolite membranes.

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PSA Hydrogen Purification | Pressure Swing Adsorption ...

Traditionally, Hydrogen PSA takes advantage of multiple sieve beds and is comprised of four phases: an adsorption phase, a depressurization phase, a regeneration phase and a repressurization phase. In the process, the impure stream of hydrogen is passed into the sieve bed where impurities are selectively adsorbed onto the molecular sieve under ...

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US6582607B2 - Method of dewatering organic liquids ...

Process for dewatering organic liquids admixed with water wherein the admixture is brought into contact with a molecular sieve. The moleculat sieve is pretreated so as to reduce its acid site concentration and attain an ammonia TPD value of 18 mmol/g or less prior to contact with the admixture. The present invention relates to a process for dewatering organic liquids admixed with water, said ...

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Supporting information separation and solvents

2019-3-1 · Supporting information High-performance carbon molecular sieve membranes for gas separation and solvents dewatering by pervaporation P. H. Tchoua Ngamou*a,b, M. E. Ivanova a,b, O. Guillon a,b and W.A. Meulenberg a,b,c aForschungszentrum Jülich GmbH, Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1), D-52425 Jülich, Germany.

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Molecular Sieves | N.B.Oler

2021-1-12 · Molecular Sieves Molecular sieves are synthetic zeolites that are a long-preferred method for drying (removing water from) hydrocarbons. To dry EtOH, use a molecular sieve with 3 Å beads (and a sufficient number to absorb the mass of water needed). 4+ Å beads absorb EtOH, so only use 4 Å beads if you are drying butane and/or propane.

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CN102079741A - Novel dewatering and purifying method

The invention relates to a novel dewatering and purifying method of ethylene carbonate (EC). The technical scheme adopted by the invention is as follows: an impurity-removing agent which is insoluble in EC and can absorb the moisture, alcohols and micromolecular impurities in EC is added in EC, wherein the impurity-removing agent can be one or more of spherical low-sodium molecular sieves such ...

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High-performance carbon molecular sieve

2019-3-1 · Ultrathin (∼200 nm) and defect-free carbon molecular sieve (CMS) membranes were successfully fabricated on the inner surface of hierarchically structured porous supports (γ-Al2O3 layer coated α-Al2O3 tubes) via pyrolysis of a polyimide

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Molecular Sieves (Molecular Sieve) - 29 Manufacturers ...

2021-10-23 · Molecular Sieves. 25505 Shandong, China shandong aluminum corporation. Company Profile Send enquiry. Molecular Sieves. 200025 Shanghai, China shanghai huayi group company上海华谊集团. Company Profile Send enquiry. Molecular Sieves. 20190 Shanghai, China shanghai newell molecular sieve co., ltd. Company Profile Send enquiry.

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Molecular Sieve Structure And Common Types

2019-9-9 · Molecular Sieve factory mentioned that The proteoglycan polymer thus constituted is zigzagly wound to form a microporous sieve-like structure called a molecular sieve. Molecular sieves only allow passage of substances smaller than their

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Sieve , molecular - Big Chemical Encyclopedia

Sieve , molecular Molecular sieve carbons contain ultraflne micropores that permit the penetration of smaller molecules but impede the entry of larger molecules.The diffusion of certain gases and vapors into these materials is an activated process and is strongly temperature dependent.Thus, Marsh and Wyne-Jones observed that the uptake of nitrogen at 77 K for a polymer carbon was much smaller ...

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PSA Hydrogen Purification | Pressure Swing Adsorption ...

Traditionally, Hydrogen PSA takes advantage of multiple sieve beds and is comprised of four phases: an adsorption phase, a depressurization phase, a regeneration phase and a repressurization phase. In the process, the impure stream of hydrogen is passed into the sieve bed where impurities are selectively adsorbed onto the molecular sieve under ...

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Research Programs-无机膜与催化新材料研究组

2021-10-20 · Pure molecular sieve membranes Organic-inorganic hybrid membranes 2D ultrathin nanosheet membranes Novel membrane separation and adsorption Further reading: Tuning of Delicate Host–Guest Interactions in Hydrated MIL-53 and Functional Variants for

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