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Study on Methane Storage Characteristics in MIL⁃101 (Cr) Based on Adsorption⁃Hydration

Chen Shujun, Wang Yanfang, Fu Yue, Liu Yongqiang, Wang Zeyuan

Abstract （360）

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In order to improve the methane storage in porous media under mild conditions, the storage characteristics of methane in Mil⁃101 (Cr) were studied based on adsorption water method.MIL⁃101 (Cr) was prepared and characterized. Methane adsorption experiments were performed at 271.15 K and 0～7.0 MPa with different water contents. The particle size of the synthesized material was uniform, grain size range was 100～150 nm, and almost without impurities. The pore size was mainly distributed in the range of 1.7 nm to 3.6 nm. The results of adsorption experiments show that: MIL⁃101 (Cr) adsorbs more methane under the condition of water, and with the increase of the water content, the amount of methane adsorption increases. The pressure required for nucleation in porous media is higher than that for bulk system, and the greater the water content is, the higher the critical pressure is. The MOF material used in the experiment still has good adsorption capacity after repeated regeneration. The research results have certain significance for increasing the natural gas storage capacity.

2020, 40 (4): 92-97. DOI: 10.3969/j.issn.1672-6952.2020.04.013

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Simulation Study on the Adsorption and Separation of CO2 from Natural Gas by M⁃MOF⁃74

Zhu Min，Wang Yanfang，Chen Shujun，Fu Yue，Li Xuejian，Liu Yongqiang

Abstract （496）

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The application of M⁃MOF⁃74 series in CO ₂removal of natural gas was studied. The skeleton model of M⁃MOF⁃74 was established. The adsorption of pure CO ₂gas and CO ₂/CH ₄ mixed gas in M⁃MOF⁃74 series adsorbent was calculated by GCMC method. The results showed that the order of adsorption of CO ₂by M⁃MOF⁃74 adsorbent was Mg⁃MOF⁃74 > Ni⁃MOF⁃74 > Co⁃MOF⁃74 > Fe⁃MOF⁃74 > Cr⁃MOF⁃74 > Mn⁃MOF⁃74.When adsorbing mixed gases, the adsorption amount of CO ₂ by each adsorbent is consistent with that of pure CO2 adsorption, and the adsorption amount of CH ₄ is: Mg⁃MOF⁃74>Ni⁃MOF⁃74≈Co⁃MOF⁃74≈Fe⁃MOF⁃74≈Cr⁃MOF⁃74≈Mn⁃MOF⁃74. The law of isosteric heat of gas on M⁃MOF⁃74 is the same as that of adsorption capacity, indicating that the interaction between gas and M⁃MOF⁃74 is the main factor affecting the adsorption amount. The selectivity of each adsorbent to mixed gas: Ni⁃MOF⁃74>Co⁃MOF⁃74>Fe⁃MOF⁃74>Mn⁃MOF⁃74>Cr⁃MOF⁃74>Mg⁃MOF⁃74. Comprehensive comparison of CO ₂adsorption capacity, regeneration energy consumption, selectivity coefficient and other parameters, Ni⁃MOF⁃74 is more suitable for the adsorption and separation of CO ₂ in natural gas.

2019, 39 (3): 40-45. DOI: 10.3969/j.issn.1672-6952.2019.03.008

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Establishment and Dynamic Simulation of the Virtual Prototype of Excavator Work Device

ZHANG Lin-yan, DENG Zi-long, ZHANG Hong-liang, FU Yue

Abstract （412）

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The software Pro/E was adopted to create a three-dimensional physical model of the virtual prototype of a single bucket backhoe hydraulic excavator work device. The model was transferred into ADAMS to build a virtual prototype of the work device. A work cycle of excavator work device, as well as the tangential force, the normal force and the gravitational force of the materials was successfully simulated by using the function step. With the simulation, load-time curves of three hinge points whose articulated stresses are more complex were obtained. The research has provided the basis for the design of the excavator devices.

2008, 28 (3): 46-49.

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Intensity Analysis of the Excavator Bucket

DENG Zi -lo ng,GAO Cai -lu,FU Yue

Abstract （414）

PDF （768KB）（409）

Taking WY100C hydraulic excavator (bucket capacity for 1 m3)a s a prototype , a physical model of the excavator backhoe working device (bucket)was established by Pro/ E .The finite element intensity analysis of the design model of the bucket was made under the circumstance of dangerous working condition of the largest stress through Pro/ MECH ANICA module .The results indicate that the bucket teeth in the front of the bucket , the roots of the bucket back lug , the hinge areas and the reinforcement areas are the most dangerous parts.Designers should especially take intensity requests of these locations into account.Other parts are relatively safe .The intensity analysis of the excavator backhoe working device (bucket)provides a theoretical basis not only for bucket design , but also for improving the performance of bucket.

2007, 27 (4): 45-47.

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Dynamic Simulation Analysis of Backhoe Working Equipment of the Hydraulic Excavator Based on Pro/E Software

FU Yue,DENG Zi -long

Abstract （331）

PDF （533KB）（472）

The traditional design methods to draw the envelope diagram have many shortcomings , such as the heavy workload, imprecision and less intuition .Pro/E software was used to model and assemble for backhoe working equipment of the hydraulic excavator .Above all, the excavator movement process and work conditions were analyzed.Then mechanism kinematics simulation was carried on by Mechanism module in the Pro/ E software.The limit positions of movable arm , bucket arm and bucket were found through setting joint shafts of the excavator .At last , the envelope diagram of the top end of excavator bucket was obtained.The results of motion simulation can be not only shown in form of cartoon, but also output in form of parameters .So the working parameters of the excavator are obtained .It can be know n whether the components interfere and whether excavator design satisfies the performance requirement .Dynamic simulation provides design references for improving over all performances .

2007, 27 (2): 50-53.