Optimization method for pressure swing adsorption carbon capture based on Fluent software

An optimization method, pressure swing adsorption technology, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve the problem of consuming manpower, material resources and financial resources

Active Publication Date: 2019-07-09
TIANJIN UNIV
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However, the technical solutions disclosed in the above patent documents are only discussed for the simulation results of a certain fixed material and fixed conditions. If the material is changed to change the conditions, a long-term experiment will be carried out again.
will consume a lot of manpower, material and financial resources

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  • Optimization method for pressure swing adsorption carbon capture based on Fluent software
  • Optimization method for pressure swing adsorption carbon capture based on Fluent software
  • Optimization method for pressure swing adsorption carbon capture based on Fluent software

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[0076] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, and the described specific embodiments are only for explaining the present invention, and are not intended to limit the present invention.

[0077] A Fluent-based PSA carbon capture optimization method proposed by the present invention mainly includes the adsorption of CO 2 The establishment of the adsorption bed model, the establishment and verification of the CFD model, the flow chart is shown in figure 1 . Specific steps are as follows:

[0078] Step 1. Adsorb CO 2 The establishment of the adsorption bed model

[0079] Set the basic parameters of the adsorption bed, including bed length L=0.171m, bed diameter d int =0.022m, bed porosity ε=0.52, adsorption bed wall thickness l=0.0015m, adsorption bed wall specific heat C p,w =440J / kg K and adsorption bed wall density ρ w =7280kg / m 3 . Using the geomet...

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Abstract

The invention discloses an optimization method for pressure swing adsorption carbon capture based on Fluent software. The method comprises establishing of an adsorption bed model for adsorbing CO2 andestablishing of a mold for calculating fluid mechanics; and the method comprises the following specific steps: firstly, setting basic parameters of an adsorption bed, and performing model assumptions; then performing numerical simulation on a CO2 adsorption process by utilizing the Fluent software, and establishing a mass, momentum and energy conservation equation; writing user-defined functionsfor solving, and using three user-defined scalars and six user-defined memories; setting initial and boundary conditions of pressure swing adsorption, and simulating the whole adsorption process through a discrete control equation to obtain adsorption results; and when an adsorption process is finished, adjusting the initial or boundary conditions according to the adsorption results to find the optimal adsorption conditions corresponding to the adsorption bed. The method provided by the invention obtains more accurate and more practical fluid flow distribution, component concentration distribution, various temperatures and the like in an adsorption container and optimizes the energy efficiency analysis and adsorption system in the CO2 adsorption process.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a Fluent-based optimization method for pressure swing adsorption carbon capture. Background technique [0002] The issue of climate change has gradually become one of the focuses of global attention, and one of the main negative contributions is the greenhouse effect of carbon dioxide. Among many climate change mitigation technologies, carbon capture and storage (CCS) technology is considered to be a positive and effective technical measure. As for the energy consumption analysis in carbon capture technology, the predecessors summarized the relevant research on carbon dioxide physical adsorption, and pointed out that adsorption carbon capture technology should pay attention to the thermodynamic analysis of the first law and the second law of adsorption technology. Usually CO2 capture methods are: absorption method, adsorption method, membrane separat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/047G06F17/50
CPCB01D53/047B01D2257/504G06F2119/06G06F30/20Y02C20/40Y02T90/00
Inventor 邓帅赵力连亚晖李双俊何俊南赵睿恺周杨洲徐耀锋刘博文
Owner TIANJIN UNIV
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