Bulk Gas Plant - Energy EfficiencyImprovement Project

2nd October 2014 l K Durgadas Shetty

Content...

3) Project Description

2) MICRON – SOXAL asPartners

1) Introduction to SOXAL

Air Liquide, world leader in gases, technologies & services for Industry & Health02/10/14 EENP Award2

5) Questions & Answers

4) Project Outcome

3) Project Description

MICRON – SOXAL as Partners

SOXAL, the subsidiary of Air Liquide in Singapore started

Micron Technology is a global leader in the semiconductorindustry. Micron offers the industry’s broadest portfolio ofsilicon-to-semiconductor solutions – such as foundationalDRAM, NAND & NOR Flash memory, SSDs, modules,MCPs, HMCs, and other semiconductor systems.

Air Liquide, world leader in gases, technologies & services for Industry & Health02/10/14 EENP Award3

Soxal has the business relationship with Micron since 1992.Micron is an important customer globally. We work togetheras partners which is the key success factor in this project.

SOXAL, the subsidiary of Air Liquide in Singapore startedoperation in Singapore in 1911, and was integrated intoSOXAL in 1975. Supported by a dedicated and innovativeworkforce of more than 750 employees, SOXAL is theleading industrial gas company in South-East Asia.

Project Background..

SOXAL as a valuable partner studied the whole system

Micron site has multiple Nitrogen generators installedsince 1992, there is an opportunity to optimise andimprove the overall Energy consumption.

Air Liquide, world leader in gases, technologies & services for Industry & Health02/10/14 EENP Award4

It is a win-win solution for customer as it has reduce theoverall energy consumption drastically and meet theirpresent and future operational demands.

SOXAL as a valuable partner studied the whole systemand designed the plant by integrating the existingequipments with new technology.

Project Key features…

Front end purification: Electrically-driven refrigerator unitwhich is used to reduce the air temperature is completely

Two major improvements are featured in this project whichhelped in the overall energy reduction:1. The front end purification (Refrigeration unit)2. The cryogenic distillation (Recycle compressor)

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Cryogenic Distillation: Mechanical energy derived from gasexpansion turbine is recovered to run the boostercompression. In the older plants the electricity isconsumed by motor-driven recycle compressor.

which is used to reduce the air temperature is completelyeliminated in new improved design.

The Change...

TCN-BETCN-FLEX

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Differences:1. Elimination of Electrical Driven Fridge unit2. Elimination of Electrical Driven Compressor by making use of booster expander

Challenges..

Rigorous Coordination and detailed planning duringcommissioning to keep seamless supply to Micron

Complications involved in the technical Integration ofexisting equipment and new cold box with boosterexpander

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To achieve the targeted outcome as it was theintegration of existing equipments.

Space constraint onsite and management of safetyduring construction and commissioning phase whilekeeping old system in running condition

Project Outcome..

5200

5400

5600

5800

Power Consumption/kW

EstimatedAnnual PowerSavings:7954MWh(~S$1.67m)

Air Liquide, world leader in gases, technologies & services for Industry & Health02/10/14 EENP Award8

4200

4400

4600

4800

5000

Power Consumption/kW

Project Outcome…

Questions & Answers

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End of PresentationThank you for your attention