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kg/hr steam 1st stage

20000

15000
10000

5000

0
1

120 C 110 C

Fig.4.7 effect of increased temperature of the first stage RSCC

We can develop RSCC for the Al-Khafji plant as follows:

1-start the first stage at 0.6 bar instead of 0.4 bar.

2-increase the inlet temperature from 110° c to 120° c.

3- increase the number of stages from 4 to 7 stages.

4- The pressure of the last stage equals 0.05 bar instead of 0.1bar.

The result of this development as follows:

Number of stages The pressure of the stage bar Steam flow rate kg /hr
1 0.6 12338
2 0.5 3674

3 0.4 2903
4 0.3 4037
5 0.2 4264
6 0.1 4581

7 0.05 2359
Summation of steam flow rate = 34162 kg/hr
GOR = 9.25 → increased by 18.6 %

3
Capacity = 2676 m /day
Table 4.1 development results of RSCC

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