Solutions for Thermal Coupling between Hydrogen Plant and Hydrofining Plant in a Refinery Site

1
Solutions for Thermal Coupling between Hydrogen
Plant and Hydrofining Plant in a Refinery
Site 1G. Bumbac, 1V. Plesu, 1C. Ciornei, 2T.
Gheorghita, 2G. Duca, 1University Politehnica of
Bucharest, Centre for Technology Transfer in the
Process Industries, 1, Polizu Street, Building
A, Room A056, Sector 1, RO-011061, Bucharest,
Romania, Phone/fax [phone], email
pres2004_at_chim.upb.ro 2S.C. Refinery ASTRA ROMANA
S.A., 59, Blvd Petrolului, Ploiesti, Romania,
phone [phone], fax [phone].
Process integration using Pinch Analysis
provides the instruments to establish the degree
of integration on a specific site and also gives
to the design engineer the possibility to find
solutions for further integration, using the site
utility system or process streams from different
processes. This is the case of an oil refinery
where thermal coupling between Hydrogen and Lube
Hydrofining plants are investigated in order to
minimise costs. Process Simulation software
package HYSYS and Process Integration software
SPRINT was used to perform analysis and synthesis
of thermal-coupling solutions.
PINCH ANALYSIS
- HYDROGEN PLANT COMPOSITE CURVES AT EXISTING
DTmin22 OC
- HYDROFINING PLANT COMPOSITE CURVES AT
EXISTING DTmin28 OC
HYDROGEN PLANT PROCESS CHARACTERISTICS
SCOPE REDUCING UTILITY EXTRACONSUMPTION OF
2316 1162 1154 kW HOT
UTILITIES IN HYDROFINING PLANT
1707 1492 215 kW HOT UTILITIES IN
HYDROGEN PLANT
RETROFIT SOLUTIONS
THERE IS A GOOD COGENERATION POTENTIAL IN THE
HYDROGEN PLANT
1
COMPLEX SOLUTION FOR PLANT MODIFICATION
EXISTING PLANT UTILITIES CONSUMPTION
(DTmin22OC) - HOT UTILITY 1708 kW
- COLD UTILITY 853 kW
2
SOME INDIVIDUAL RETROFIT SOLUTION (WITHOUT
THERMALCOUPLING)
HYDROFINING PLANT PROCESS CHARACTERISTICS
3
THERMAL COUPLING BY HOT UTILITY (GREEN LINE IS A
UTILITY STREAM)
EXISTING PLANT UTILITIES CONSUMPTION
(DTmin28OC) - HOT UTILITY 2316 kW
- COLD UTILITY 1725 kW
CONCLUSIONS
PROCESS SIMULATION AND PROCESS INTEGRATION TOOLS
USED

• - HYSYS SIMULATION ENVIRONMENT
• SPRINT PROCESS INTEGRATION SOFTWARE
• TERMTECH AN OWN INTERFACE SOFTWARE FOR DATA
• INTERCHANGING BETWEEN HYSYS AND SPRINT