Deep Sea Sequestration of Carbon Dioxide Gas Using Bubble Swarm Buoyancy : A Study on Characteristics of Turbulent Bubbly Flows in a Large-diameter Pipe

Abstract

We have been developing GLAD ( Gas Lift Advanced Dissolution) System for the purpose of CO_2 sequestration at the deep sea. In the present paper, large-scale structure of turbulent bubbly flows in a large-diameter pipe (149mm in diameter and 11m in height), that is the key phenomena in the system, is experimentally considered using Four-Tip Optical-fiber Probe (F-TOP) and Laser Doppler Anemometer (LDA). Furthermore, characteristics of large-scale gas-lift pump (151mm in diameter and 212.6m in height) are discussed experimentally.