Holcim (Brazil) - Barroso Plant- Phoenix Project New Clinker Line of 4,500 TPDPhase: Pre - Engineering

CEPROCIM Engineering S.R.L Bucharest

Light Fuel Oil System in the Plant- Short Description -

A new light fuel oil system is necessary for starting.

The assumed characteristics of the light fuel-oil are (in Portuguese the name is 1A):- Density at 20°C : 1,017 g/ml- Sulfur content: 0.82%- Flashpoint: 103 °C- Kinematic viscosity at 60°C: 529 mm2/s - Kinematic viscosity at 98.9°C: 57 mm2/s- Water and sediments content: 0.1%- Higher Calorific value: 9600 cal/g

The poor point of the light fuel oil is below the ambient temperature.

The flow sheet for the light fuel-oil pump is shown in the flow sheet PHX1-ME09-L18000-001_00.

The "light" oil (1A) is delivered by truck and stored in a new vertical cylindrical tank L1B – FT1 of 100 m3 capacity. The service tank will be located inside of concrete retention pit L1B-3I1.

A booster pump L1B – FP1 with the flow rate of 20 m3/h and 5 bars is provided for truck unloading.

The following light fuel oil consumers were considered for starting:- Burning system of the hot gas generator of the cement mill A (new),- Burning system of the hot gas generator of the cement mill B (new),- Burning system of the rotary kiln no. 2 (new),- Burning system of the rotary kiln no. 1 (existing)

A pump station will be provided outside the retention basin for fuel unloading from the truck and fuel pumping till the specific pumping units of each consumers (kiln burners, hot gas generators, etc). These pump units shall be positive displacement pumps will be booster pumps for the entire system. For safety reason, to impeach the spread of the light fuel outside it is recommended to create a secondary retention pit for the pump area.

Closed to the consumer points burners of the kilns or of hot the gas generators there are provided high pressure pumps with suitable filtering devices and electrical heating system unit and valve train to adjust the flow rate and allow that the fuel to be spread at suitable viscosity inside the furnace.

The light fuel oil valve trains will feed the consumers burners when the fuel reaches a suitable temperature/viscosity for spraying. Only the necessary light fuel oil flow rate will be used at consumers. The rest of the fuel will be re-circulated to the service tank.

Date: February 2010 Page 1 of 1Revision: 0