This work compares three postcombustion CO2 capture processes based on mature technologies for separation, namely, (i) absorption using an aqueous piperazine solution, (ii) adsorption Zeolite 13X in conventional fixed beds (either vacuum swing or temperature adsorption), and (iii) multistage membrane separation a polymeric material (with CO2/N2 selectivity of 50 permeability 1700 GPU). All plan...

Oxygen transport membranes are a possible low-cost alternative to cryogenic air separation units or pressure swing adsorption for oxygen production, and could facilitate carbon capture by oxy-fuel combustion processes. In this work, proof-of-concept module with 7 ceramic tubular was designed tested in high test stand. To ensure production rates, asymmetric length of 70 cm consisting porous Ba0....

Abstract Oxygen is a critical gas for medical and industrial settings. Much of today's global oxygen supply via inefficient technologies such as cryogenic distillation, membranes or zeolites. Metal–organic frameworks (MOFs) promise superior alternative separation, their fundamental chemistry can in principle be tailored reversible selective capture. We evaluate the characteristics uptake by MOF...

The use of microwave heating for the thermal regeneration a porous carbon adsorbent in adsorptive capture was evaluated. In this Microwave Swing Adsorption (MSA) process, multimode oven has been used to accelerate desorption CO2 after adsorption / N2 (15/85 v/v) mixture. Starting from commercial activated (AC) material (MSP-20X), sorbent extrudates were prepared and loaded Teflon column. bed in...

Capture and recovery of hazardous air pollutants (HAPs) and volatile organic compounds (VOCs) from gas streams using physical adsorption onto activated carbon fiber cloth (ACFC) is demonstrated on the bench-scale. This system is regenerated electrothermally, by passing an electric current directly through the ACFC. The adsorbate desorbs from the ACFC, rapidly condenses on the inside walls of th...

Introduction An understanding of how CO2 and H2O interact and affect each other’s behavior on adsorbent surfaces is essential for both theoretical study and industrial processes especially CO2 capture from wet flue gas streams. There are few reported studies on adsorption equilibrium for such a binary system. Rege and Yang [1] measured very low concentration of CO2/H2O vapor (<4.1% relative hum...

The present work elaborates the process design methodology for the evaluation of the distillation systems based on the economic, exergetic and environmental point of view, the greenhouse gas (GHG) emissions. The methodology proposes the Heat Integrated Pressure Swing Distillation Sequence (HiPSDS) is economic and reduces the GHG emissions than the conventional Extractive Distillation Sequence (...