#TITLE_ALTERNATIVE#

• Main Author: BUDIONO (NIM : 12213054), ERY
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/21989
• Institution: Institut Teknologi Bandung

Gas production which has a very high CO2 gas content requires costly—special treatment. Moreover, if gas is produced in offshore conditions that are available only narrow space on the platform to do the separation. A method to do this separation is by shifting the CO2 phase in the phase diagram from the gas phase to the liquid phase. This shiftting requires certain pressures and temperatures that meet the temperature and pressure boundary to become liquid. <br /> <br /> <br /> This study performs simulations to determine the pressure and temperature constraints required to convert CO2 to liquid phase. This study uses a finger-type slug catcher mounted on the seabed. The finger-type slug catcher is consists of parallel pipes of a certain diameter and length. Furthermore, the simulation is done by variations of several variables: inlet pressure, ambient temperature, inner pipe diameter, and number of branches. This criterion limitation is further used to design slug catcher so that the separation of methane and CO2 gas can occur optimally. The slug catcher design resulting from this study includes the value of the inlet pressure, diameter, and minimum length of the pipe whwere CO2 begin to form liquid. <br /> <br /> <br /> The simulation was done by 320 kinds of combination for the range of inlet pressure value 800 -1500 psia, the range of pipe inner diameter 40 - 50 inch, the range of ambient temperature 50 - 80oF, and the range of 1 - 5 for number of branch. Based on this simulation, when the inlet rate of 200 MMSCFD, the inlet temperature of 100oF and the overall heat transfer coefficient of 200 BTU/ hr / ft2 / oF, it is obtained that the shortest length of slug catcher is 72.178 ft, 40 inch in inner diameter, and the inlet pressure requirement is 1000 psia. Furthermore, for design purposes, the value of this length is become 217 ft to ensure that the liquid CO2 formed from a distance of 72.178 ft can accumulate and towards the liquid flowline for treatment or further utilization.