ISFAHAN OIL REFINERY UTILITY & OFF-SITE PROJECT FOR DHT
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1 The Facility
Isfahan Oil Refinery has been operating in the field of crude oil refining and petroleum products production and downstream feedstuffs since 1979 and now produces about 23% of the country’s petroleum products.
The company is located in the northwest of Isfahan with a total area of 340 hectares.
2 Process Introduction In Our Scope
Our proposal consists of water treatment system according to project documentation:
- Ultrafiltration with total capacity of 12000 m3/d = 500 m3/h
- Cleaning in place unit (CIP)
Total flow rate divided into three parts and each other enters in separate Ultrafiltration system with capacity 4000 m3/d or 166.6 m3/h.
Ultrafiltration (UF) involves pressure-driven separation of materials from a feed solution. The technology is used to remove particulate and microbial contaminants, but it does not remove ions and small molecules. Pressure drives the process, which typically operates with a feed pressure of 4 to 100 psig. UF plants are automated and have low operational labor requirements. These systems, however, can require frequent cleaning.
Ultrafiltration systems are designed for fully automatic operation. A control mechanism is used to control the various operating modes of the ultrafiltration process: filtration, cleaning and backwashing.
Typical UF design with dizzer modules could be found in following Figure.
3 General overview and process description
Our task in this project is to purify the water by an ultrafiltration system to achieve ideal water parameters for RO feed.
Inlet and outlet water specifications are summarized in the following tables:
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- Client : Tyler Inc.
- Location : California City FL 23059
- Area : 1.690 m2
- Finished On : September 17, 2014
- Value : $789.000,00
- Remarks : The project was completed under the budget, with the savings returned to the owner.
Parameter | Unit | Quantity |
pH | – | 7-8 |
TDS | ppm | ~2873 |
BOD | ppm | 30 |
COD | ppm | 60 |
TSS | ppm | 15 |
oil | ppm | <2 |
Table 1– Inlet water specification
Parameter | Unit | Quantity |
TSS | ppm | <0.1 |
SDI | ppm | <3 |
turbidity | NTU | <0.1 |
Table 2- Product water specification