Approach to Saving Energy · Saving energy amount 9,000coe-kl/y CO2 reduction amount 2,400 ton/y...
Transcript of Approach to Saving Energy · Saving energy amount 9,000coe-kl/y CO2 reduction amount 2,400 ton/y...
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2013/1/21
Approach to Saving Energy
in Idemitsu Japan The role of the Energy Manager
to support energy conservation
10th May,2010
Energy Manager
Hidetoshi Suzuki
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Introduction
Energy conservation is not a job that employees want to do. Also their mind cannot be moved by rules or governmental law.
On the other hands, most of energy conservation investments do not work out economically.
Therefore, the role of manager is very difficult and important.
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Contents
About our company Idemitsu
Background
Governmental support
Management viewpoints
Visualization points
Example
Extreme idea
Summary
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About our company Idemitsu
Core Business
Resource
Development &
Procurement
Around
5,000 Gas
Station retail
R&D
Refining and
Petrochemicals
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About our company Idemitsu
Idemitsu has 4 refineries and 2 petrochemical factories
in Japan. Chiba refinery is the largest one in our
company and well integrated in petrochemicals.
Petrochemicals
Petrochemicals
Chiba refinery began
operating in 1963
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About our company Idemitsu
Survive our old refinery complex
Basically, complex competitiveness is
decided by configuration and its scale.
• Installed cutting edge technology
• High efficiency equipment are used
• Well considered configuration that suitable for
the market
Big handicap in our old complex !
Mission
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About our company Idemitsu
Survival key items
Energy conservation is one of key item to keep
competitive edge
• To integrate chemical products (Fuel to Chemical)
• To know our production plant well
• To catch up new technology
• To maintain equipment well
Big handicap turns to a power !
Bring up intelligent operators through EC
Mission
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Background
Energy unit consumption
<Refinery>
Fuel oil litter/kilo litter prod.
<Petrochemicals>
Fuel oil litter/ton product
Improvements what we
can apply are lost for
these several years.
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Background
Most energy conservation matters do not
consist economically. So we need
“Financial support”
“Tax discount”
Motivation up
“Mind & Technical support”
Energy managers have to manage them.
Governmental support is also important.
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Governmental support in Japan
<Financial support >
-Finance subsidy (NEDO, PEC)
-Taxation , Loan treatment
<Mental support>
-Commendation (EC award)
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Governmental support in Japan
NEDO: Up to 50% investment assistance to the excellent
conservation of energy investment.
Affiliated association of the METI Japan
ECCJ
ECCJ: Supporting financial matter and they
host EC AWARDS in Japan.
They lead spilling over success case of EC
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Governmental support in Japan
Energy conservation is one of the activities of TPM
(Total Productive Management) in IDEMITSU.
We keep being awarded the energy conservation
prize that explained before for 24 years in a row !
<The small group activity>
It is usual to make a small group to
advance the improvement activities.
Each group has a responsibility to do
‘KAIZEN’ (improvement activities)
They are competing hard mutually.
Awards
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Management viewpoints
To success the energy conservation, there are two important viewpoints.
One is “Improve Performance”.
Another is “Keeping Performance”.
In old plant site such as ours, Keeping performance is more and more important.
The performance of the machine decreases without fail. Exchangers have to foul.
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Management viewpoints
CROF (CRude Oil Fouling) PJ *1) says
Pre-heat train fouling is estimated to cost
around $1.2 billion per annum in the US alone.
$ 6 billion per annum in the World ! !
$ 300 million per annum in Japan !
*1) Imperial College London
Billion $ order losses Japan overall !!!
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Management viewpoints
Basic idea
How to treat the plant well?
• Check real time
• Think quickly
• Action agile
Manager needs “Checking tools” and “Organization
that quick response can be achieved”
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Environmental Board
(4)
Expert Committee
Energy supervisor
Meeting once a month
Promotion Structure
In production facility
Designated by law
Production Division Admin.
Division
All D
ivis
ions fo
r pro
d. s
upport
Top management
Energy managers
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Action
Midterm plan
Promotion Cycle
Head
Office
Engineering section
Administration section
Do
Production sect.
Discovering
Review & Execution
Annual Plan
Prod. control sect.
Administration section
Check result
Twice a year
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Safety Environmental QC
Earning
&Expense Prod. control Utility EC
Maintenance Optimizer
Import Export Tank storage
Operation
Alert shows
some difference
observed in its
plant.
!
Visualization (TOOL)
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Visualization
Know the Original
Operating conditions changed little by little
from first design.
• Catalysts, feedstock, fouling etc.
We cannot judge present state good or not,
if we do not know original design.
It’s just like children’s imagining
Grandfather’s younger days !
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Visualization (term difference)
10years
20years
30years
We do not recognize slow change.
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6 hours 3 days 2 years
We have to check short/middle/long term changing of
equipment performance.
We need checking tools !
Visualization (term difference)
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Example
“ Keeping Performance”
Appropriate maintenance makes heat exchanger performance well
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Ex. Background
Heat exchangers
Feed heater 灯油 軽質軽油 重油
260 degC
Crude
Tank 20 C
Kero Diesel H.Oil
Target
365 degC
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Temperature decrease with
fouling of heat exchanger
灯油 軽質軽油 重油 Kero Diesel H.Oil
Fouling makes fuel consumption worse. And fouling
tendency has been changed by crud oil property.
Ex. Basic Ideas and Anxiety
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Ex. Fouling
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Ex. Previous fouling indicator
Th1 Hot stream
Tc2
Cold stream
dt= Th1 - Tc2
Hot Cold
Tc2 decrease
with fouling
dt increase with
fouling
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Ex. Fouling indicator
dt
U value
[w/m2K] U dt
Over all heat transfer coefficient indicates
Fouling condition well.
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Ex. Fouling mechanism
Cohesion
Molecule of asphaltene
Big cohesion
Asphaltene causes fouling.
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Ex. Fouling mechanism
○ H High temperature
surface
fouling
Oil
○ H
To make coke
Clean surface that has high temperature makes
more coke. (Good chemical compound is necessary)
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Ex. Fouling prevention Chemical Effect
High temperature
surface
Oil
Asphalten
cohesion
Fouling
prevention
chemical
Without chemical
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Ex.2 Improvements
0
100
200
300
400
500
2007
U(W/m2K)
Fouling will
go faster !
Cleaning Cleaning
Cleaning criteria
2005 2003 1999 2001
We check fouling trend of each heat exchanger.
And we decide cleaning schedule.
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Ex. Improvements
150
200
250
‘07 ‘03 U (W/m2K)
Fouling prevention chemical works well
with chemical
without chemical
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Ex. Energy savings
Saving energy amount 9,000coe-kl/y
CO2 reduction amount 2,400 ton/y
Saving cost amount 4 million $/y
Coe: Crude oil equivalent
Fouling prevention technology and
right timing cleaning are necessary.
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Extreme ideas for fouling prevention
<Fouling Decrease Project in Japan >
We are advancing the preparation for the project now.
Significant fouling and CO2 decreasing are expected.
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Extreme ideas for fouling prevention
<Fouling Decrease Project in Japan >
Usually, provision against fouling is cleaning and
adding the chemical.
We will find the mechanisms of fouling and apply
these theory to real plant to demonstrate them.
Visualization is not enough way to prevent fouling.
We have to get new weapons against them and
spread them.
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Summary 1
Energy Manager have to do…..
• Check performance (Visualize)
– Check initial design , performance ……
• Correct agilely if changing occurs
– Change operating conditions soon
– Suitable organization was constructed.
– Recover the performance of equipments
» Renewal, cleaning etc.
• Check new technology and apply
– Develop new ideas based on the logic
– Evaluate new technology and demonstrate
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Technology / know how
Success case
Energy Manager has
Big responsibility
Summery 2
Spilling over success cases makes big improvement!
Spilling over items are the easier the better.
Japan
- Intelligent operators
- Small member shift
- Work until retirement
- No or small incentives
Developing countries
- Manual operators
- Big member shift
- Hopping job easily
- need incentives
Spill over
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