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1)The flowsheet is opened (New Case).

2)All the components (Methane, Ethane and etc) involved were inserted and the fluid package (Peng-Robinson) was chosen.

3)[Enter Simulation Environment].

4)The stream line (Energy & Material) was created and the molar flowrate was inserted.

5)The suitable equipment (slug catcher, flash drum & etc) was chosen and connected with the respective stream line. The simulation was run after each equipment and respective stream lines connected.

6)The procedures were repeated for all the equipment involved

Outline

Line Sizing

indicate two phase flow line

indicate gas or vapor flow line

  • Introduction
  • Objectives
  • Procedure
  • Equipment:-

-Uses

-Calculation (differences between given and simulated PFD)

-Justification

  • Selected equipment: Slug Catcher

-Principle

  • Relief valve installation

-Pressure break possibility

  • Line Sizing
  • P&ID
  • Conclusion

Inlet Diverter

Mist extractor

  • Causes initial separation of gas from liquid.
  • The heavier liquid goes down while the gas rises.
  • In the open area of the vessel, the stream slows even further and the larger liquid particles fall from the gas.
  • Captures smaller liquid particles entrained in the gas.
  • If a large liquid slug enters the system, an optional dump valve is triggered to quickly handle the sudden influx.
  • Liquids exit the bottom of the vessel and the natural gas exits the top

Sketch Image

Specific Functions

The specific function of a slug catcher is the separation

of the gas and liquid phases as well as the storage of the liquids temporarily

Location installed

  • located between outlet of the pipeline and the processing equipment which is Abu Ali Condensate Heater (K81-E-008)
  • liquid that comes out from the slug catcher can be drained to K81-E-008 at much slower rate to prevent overloading system

Equipment:

SLUG CATCHER

K81-007 winter condition

Objectives

P&ID

1) Slug catcher

2) Heat Exchanger

3) Particulate filters

4) Flash Drums

1)To simulate the process flow diagram given using the HYSYS software.

2)To identify the differences between the simulated and the process values.

3)To study the underlying principles of the equipment.

4)To design a Piping and Instrumentation Diagram (PID) based on the flow diagram.

K81-008: Abu Ali Gas from Abu ALi Heater

Equipment 3:

Particulate Filters

Equipment 1:

Slug Catcher

K81-007: Abu Ali Gas

Uses

K81-009: Abu Ali Gas from Slug Catcher to LP DGA Contactor

to collect the slugs at the outlet of the pipelines

uses

to separate and remove the particles from the gas

K81-015: Gas from Abu Ali Condensate Flash Drum

K81-009 (Winter Condition)

uses

used to increase temperature of the outlet stream

Equipment 2:

Heater

FT

FC

K81-014: Condensate From Abu Ali Condensate Heater

K81-008 (Winter Case)

Introduction

HYSYS is one of the simulation software that deals with a high potential of flexibility in completing various specific tasks

HYSYS comprised of four major key aspects of its design:

Equipment 4:

Flash Drum

1)Event Driven operation

2)Modular Operations

3)Multi-flowsheet Architecture

4)Object Oriented Design

uses

to separate the vapour from the liquid

HYSYS SIMULATION PRESENTATION

K81-016: Condensate From Abu Ali Condensate Flash Drum

Group Members

Relief Valve Installation

HYSYS Procedure

  • Farah
  • Hafizah
  • Taufiq
  • Azlan

Conclusion

  • Every process equipment has its own MAWP (maximum allowable working pressure)

-the maximum pressure based on the design codes that the weakest component of a pressure vessel can handle.

Relief valves

  • To keep the process equipment from exceeding its MAWP
  • designed to protect the process equipment by lets off steam when safe pressures are exceeded, then closes again when pressure drops to the safe level.
  • A back pressure regulator maintains upstream pressure at the desired setting by opening to allow excess upstream pressure to flow downstream.

In conclusion, a PFD can be simulated using the HYSYS software. A PID also can be designed based on the flowsheet. Each equipment has its own purpose. Different line size can be were used for different phase flow. All these can be designed with the help of HYSIS software. From the design simulated, the values of the flowrate can be determined

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