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EZER provides our clients with valuable Process Basic Design and Detail engineering services required for when clients want to expand high growth products to satisfy market demand in Petrochemical plants.
EZER has accumulated wide range experiences and capabilities to successfully execute various Petrochemical plants.

Below content is to introduce the project according to petrochemical.
 
NCC Revamping Basic Design
Needs
The needs of client (YNCC #3 NCC) were as follows
  • 15% Capacity upgrading of whole plant without modification of flare system, cold box and charge gas compressor
  • Quantification and minimization of energy inefficiency in NCC plant
  • Fast decision whether the recommendation from the licensor about applying the ripple tray to the quench tower should be adopted or not because of long delivery for ripple tray
Problems
Some problems came out as we tried to meet client's needs
  • Compressor turbine power limitation
  • Safety system limitation caused by small space for flare stack and pipe rack
Solutions
In order to solve the problems and to meet the client's needs, EZER performed the following works as below
  • Modeling more elaborate simulation of whole NCC plant
  • Applying pinch technology to identify energy inefficiency
  • Lower temperature energy changed into higher temperature energy by means of that quench water duty was transferred to quench oil duty
  • Capacity upgrading without flare system (flare stack, K/O drum, flare header) modification, which safety was still assured, with DYNAMIC SIMULATION and SIS
  • No changing quench tower internal led to saving investment cost and shortening the schedule
Relevant projects
The following list summarizes the major projects to be applied to NCC Plant
Project Name Plant Description Work Scope Client Country Completed
NCC #3 Energy Saving Project NCC NCC Plant
3.485 MMkcal/hr
BE YNCC
Korea
2014.04
NCC #1 Energy Saving Project NCC NCC Plant
Energy Saving : 19 MMkcal/hr
BE YNCC
Korea
2014.04
HPC Daesan Energy Saving Project NCC/BRU/
BD/EG
NCC/BRU/BD/EG Plant/
Energy Saving : 70.5 MMkcal/hr
BE HPC
Korea
2011.01
NCC Advanced Energy Saving Project NCC Energy Saving : 18.6 MMkcal/hr BE LG Chem
Korea
2010.10
NCC Energy Saving Project NCC Energy Saving : 30.8 MMkcal/hr BE STC
Korea
2010.01
YNCC #3 NCC 2nd Debottleneck Project NCC Naphtha Feed Rate : 155 to 175 ton/hr BE YNCC
Korea
2010.01
BE : BASIC ENGINEERING.
BTX Revamping Basic Design
Needs
The needs of client (HPC) were as follows
  • 60% Upgrading of whole plant capacity compared to design capacity without compressor modification
  • Existing BRU plant should change to BTX plant so that production expands from only benzene to toluene, xylene
  • Maximization of energy efficiency in BTX plant
  • Revamping basic design for 1, 3-Butadiene and BTX plant was carried out and management and consulting for
  • Flare analysis on total complex(NCC, BD, BTX, EBISM, etc) revamping project was performed
Problems
Some problems came out as we tried to meet client's needs
  • Reactor operating pressure decreased through no modification of compressor
  • Shortage of column diameter and height
  • Difference in safety analysis basis among licensors and basic engineering companies
Solutions
In order to solve the problems and to meet the client's needs, EZER performed the following works as below
  • Changing operating condition for efficient energy saving
  • Predicting no problem for lowering pressure in the reactor through analyzing client's operation data and communicating between EZER and licensor
  • Changing optimum operating condition through the simulation model for energy saving
  • Capacity upgrading without flare system (flare stack, K/O drum, flare header) modification, which safety was still assured, with DYNAMIC SIMULATION and SIS
  • Rearrangement of HX with pinch study and simulation modeling for energy saving
  • Unifying the different safety analysis basis among companies
Relevant projects
The following list summarizes the major projects to be applied to BTX Plant
Project Name Plant Description Work Scope Client Country Completed
BTX C9 Upgrade Project BTX BTX Plant
10,000 kg/h Feed Base
BE STC Korea 2013.03
Light-end Tank VOC Recovery Project BTX Light-end Tank VOC Recovery BE STC Korea 2013.01
HPC BTX Modification Project BRU Modification from BX to BTX Plant/
73,055 kg/hr Feed Base
BE HPC/Korea 2010.01
M-X Energy Saving Project NCC/BRU NCC/BRU Plant
Energy Saving : 15.44 MMkcal/hr
BE LG Chem/Korea 2008.04
BRU/BD/
BRU Revamping Project
BRU/BD BD Plant 57 ton/hr to 93 ton/hr
BRU Plant/43.5 ton/hr to 47.85 ton/hr
BE HPC/Korea 2007.12
BE : BASIC ENGINEERING.