Adsorption separation of CO2/CH4 gas mixture on the commercial zeolites at atmospheric pressure

Li, Yundong; Yi, Honghong; Tang, Xiaolong; Li, Fenrong; Qin, Yuan

doi:10.1016/j.cej.2013.05.101

Cited by 130 publications

(83 citation statements)

References 28 publications

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“…Additionally, CO 2 adsorption capacity increases with the gas phase pressure and decreases with the rise in adsorption temperature. This trend can be observed in Table 4 (Bonenfant et al 2007;Kamiuto et al 2002;Li et al 2013;Yu et al 2012). The study of Siriwardane et al (2003) suggested that natural zeolites with the highest surface area and sodium (Na) content yield the highest adsorption capacity for CO 2 .…”

Section: Zeolites-based Adsorbentsmentioning

confidence: 61%

Feasibility of CO2 adsorption by solid adsorbents: a review on low-temperature systems

Younas

Sohail

Leong

et al. 2016

Int. J. Environ. Sci. Technol.

200

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In the last few decades of industrialization, the concentration of CO 2 in the atmosphere had increased rapidly. Different organizations have invested considerable funds in research activities worldwide for CO 2 capture and storage. To date, significant work has been done and various technologies have been proposed for CO 2 capture and storage. Both adsorption and absorption are promising techniques for CO 2 capture, but low-temperature adsorption processes using solid adsorbents are the prevailing technique nowadays. In this review paper, a variety of adsorbents such as carbonaceous materials, dry alkali metal-based sorbents, zeolites, metal-organic frameworks (MOFs) and microporous organic polymers (MOPs) have been studied. Various methods of chemical or physical modification and the effects of supporting materials have been discussed to enhance CO 2 capture capacity of these adsorbents. Low-temperature (\100°C) adsorption processes for CO 2 capture are critically analyzed and concluded on the basis of information available so far in the literature. All the information in CO 2 adsorption using different routes has been discussed, summarized and thoroughly presented in this review article. The most important comparative study of relatively new material MOFs and MOPs is carried out between the groups and with other sorbent as well.

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Section: Zeolites-based Adsorbentsmentioning

confidence: 61%

Feasibility of CO2 adsorption by solid adsorbents: a review on low-temperature systems

Younas

Sohail

Leong

et al. 2016

Int. J. Environ. Sci. Technol.

200

View full text Add to dashboard Cite

show abstract

“…However, it was decided to perform an own experimental evaluation on a 13X zeolite. This is because previous studies provide contradictory information about the CH 4 adsorption capacity of zeolite 13X [20,22,23] and since information about the applicability of this adsorbent material in fluidized bed systems is lacking. The specific material used in the experiments is the commercially available adsorbent material 13X MOLSIV™ provided by Honeywell UOP (hereafter called B13X^).…”

Section: Methodsmentioning

confidence: 68%

“…Based on the mentioned findings, reported by Li [22] and Montanari [23] for NaX-type adsorbents (also known as Zeolite 13X), this material was identified as potential adsorbent material for the proposed TSA process. However, it was decided to perform an own experimental evaluation on a 13X zeolite.…”

Section: Methodsmentioning

confidence: 99%

“…So far, several solid adsorbent materials have been in use already for pressure swing adsorption processes, where high adsorption capacities under elevated pressure are required [18,19]. Among the most commonly applied adsorbent types are activated carbons and zeolites [17,18,[20][21][22][23][24][25]. Activated carbons are well-studied adsorbent materials for CO 2 capture and are commonly applied because of their low price and easy availability.…”

Section: Introductionmentioning

confidence: 99%

“…In total, there are more than 230 different types of zeolites known by now, which differ in their SiO 2 / Al 2 O 3 ratio and the type and amount of applied cations [28]. Li et al [22] tested and evaluated six different adsorbents for the separation of CO 2 and CH 4 . Out of these six different zeolites, NaX and CaA were identified as the most promising adsorbents due to their high capacity for CO 2 uptake and their good CO 2 /CH 4 selectivity of 76 (NaX) and 74(CaA).…”

Section: Introductionmentioning

confidence: 99%

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Assessment of zeolite 13X and Lewatit® VP OC 1065 for application in a continuous temperature swing adsorption process for biogas upgrading

Sonnleitner

Schöny

Hofbauer

2017

Biomass Conv. Bioref.

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Two commercially available CO 2 -adsorbent materials (i.e., zeolite 13X (13X) and Lewatit® VP OC 1065 (Lewatit)) were evaluated for their applicability in a continuous temperature swing adsorption (TSA) process for biogas upgrading. The equilibrium adsorption characteristics of carbon dioxide and methane were determined by fixed bed and TGA tests. While relatively high CO 2 capacities were measured for both materials (3.6 and 2.5 mol kg), neither of them was found to adsorb significant amounts of CH 4 . Lewatit showed to be fully regenerable at 95°C, whereas for 13X, the regeneration was not complete at this temperature. However, 13X showed no degradation up to 190°C, whereas Lewatit started to degrade at 110 and 90°C when exposed to N 2 and air, respectively. Fluidization tests showed that Lewatit provides a high mechanical stability, while on the contrary, the tested 13X showed considerable attrition. An equilibrium adsorption model was fitted to the measured CO 2 adsorption data. The adsorption model was then integrated into an existing simulation tool for the proposed TSA process to roughly estimate the expectable regeneration energy demand for both materials. It was found that depending on the operating conditions, the regeneration energy demand lies between 0.32-0.54 kWh th /m 3 prodgas for 13X and 0.71-1.10 kWh th /m 3 prodgas for Lewatit. Since heat integration measures were not considered in the simulations, it was concluded that the proposed TSA process has a great potential to reduce the overall energy demand for biogas upgrading and that both tested adsorbent materials may be suitable for application in the proposed TSA process.

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Porous Polymers as Multifunctional Material Platforms toward Task‐Specific Applications

et al. 2018

Advanced Materials

375

245

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have triggered serious threats to the survival and development of mankind. Consequently, exploring novel materials with task-specific applications is of fundamental importance for the sustainable development of economy and society. The burgeoning progress of nanomaterials in recent years has demonstrated that porosity is one of the essential factors in determining material properties for possible breakthroughs in their applications. Therefore, porous materials are playing important roles in many well-established applications and emerging technologies for challenging social and economic issues due to their intrinsic characteristics of large surface areas, open channels, and the possible control over the pore environment. According to International Union of Pure and Applied Chemistry, the pores of porous materials are classified into three categories by their pore sizes: micropores are smaller than 2 nm, mesopores are in the range of 2-50 nm, and macropores are larger than 50 nm. [1] Their pore walls include the organic skeleton (e.g., porous polymers, organic porous cages, and supramolecular organic frameworks), the inorganic skeleton (e.g., zeolites, porous carbons, and mesoporous silica), and the hybrid skeleton (e.g., metal-organic frameworks (MOFs)).Among the developed porous materials, porous polymers have attracted an increasing level of research interest owing to their potential to integrate the advantages of both porous materials and polymers. [2,3] Table 1 lists the characteristic structural features and properties of porous polymers, and gives a systematic comparison to other typical porous materials, such as zeolites, porous carbons, and MOFs. Porous polymers, zeolites, porous carbons, and MOFs share a number of features such as high permanent porosities, large surface areas, and designable pores and voids. However, they are different in several important aspects. The major advantages of porous polymers over many other porous materials are their chemical diversity and easy processability. Compared to zeolites and porous carbons, the synthesis of porous polymers is generally more versatile and can be approached in a way that conforms to the concept of rational materials design. Similar to MOFs, porous polymers inherit the excellent chemical and physical tunability afforded by the versatility of organic chemistry. Furthermore, Exploring advanced porous materials is of critical importance in the development of science and technology. Porous polymers, being famous for their all-organic components, tailored pore structures, and adjustable chemical components, have attracted an increasing level of research interest in a large number of applications, including gas adsorption/storage, separation, catalysis, environmental remediation, energy, optoelectronics, and health. Recent years have witnessed tremendous research breakthroughs in these fields thanks to the unique pore structures and versatile skeletons of porous polymers. Here, recent milestones in the diverse applications of porous polymers are presented, ...

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Adsorption separation of CO2/CH4 gas mixture on the commercial zeolites at atmospheric pressure

Cited by 130 publications

References 28 publications

Feasibility of CO2 adsorption by solid adsorbents: a review on low-temperature systems

Feasibility of CO2 adsorption by solid adsorbents: a review on low-temperature systems

Assessment of zeolite 13X and Lewatit® VP OC 1065 for application in a continuous temperature swing adsorption process for biogas upgrading

Porous Polymers as Multifunctional Material Platforms toward Task‐Specific Applications

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