Use of two-stage membrane countercurrent cascade for natural gas purification from carbon dioxide

International Workshop on Physical and Chemical Processes in Atomic Systems

Kurchatov, I.M.^1 ; Laguntsov, N.I.^1 ; Karaseva, M.D.^1,2

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow

115409, Russia^1

JSC Aquaservice, Kashirskoe highway 31, Moscow

115409, Russia^2

关键词: Basic parameters;    Counter current;    Energy units;    Methane extraction;    Methane loss;    Natural gas dehydration;    Optimal values;    Technological scheme;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/751/1/012040/pdf
DOI  :  10.1088/1742-6596/751/1/012040

来源: IOP

【 摘 要 】

Membrane technology scheme is offered and presented as a two-stage countercurrent recirculating cascade, in order to solve the problem of natural gas dehydration and purification from CO2. The first stage is a single divider, and the second stage is a recirculating two-module divider. This scheme allows natural gas to be cleaned from impurities, with any desired degree of methane extraction. In this paper, the optimal values of the basic parameters of the selected technological scheme are determined. An estimation of energy efficiency was carried out, taking into account the energy consumption of interstage compressor and methane losses in energy units.