Table 2 represents the short-range status. Other running plans for other years are
summarized below. Thus, Table 3 gives the product deficiencies/surplus versus
crude requirement to satisfy product deficiencies over those years.
See the following notes for Table 3:
1. Swing capacity is defined as the sum of international bunkers plus volume
of seasonal storage. It is assumed that crude is run for international bunkers
in the summer if necessary, and an equal volume of fuel oil is imported in
the winter against inland fuel oil requirements. Thus, swing capacity represents
the volume of crude which can be run in the summer against winter
requirements.
2. Net crude is the volume of crude running capacity required in summer and
winter when maximum use is made of swing capacity.
3. Minimum crude capacity is the volume of distillation capacity which must be
available just to meet deficiencies and making maximum practical use of the
swing capacity.
Eight basic schemes were studied to meet the minimum capacities for satisfying
the deficiencies. These were as follow:
Case 1. Expand Kent distillation by 82 Mbpsd – Debottleneck
Case 2. Expand Kent distillation by 34 Mbpsd on CDU 101 and 50 Mbpsd on
CDU 102
Case 3. Expand Kent distillation by 50 Mbpsd on CDU 101 and 34 Mbpsd on
CDU 102
Case 4. Expand S. Wales distillation by 100 Mbpsd – Grassroots
Case 5. Expand Kent distillation by 100 Mbpsd – Grassroots
Case 6. Expand Kent distillation by 34 Mbpsd and S. Wales by 40 Mbpsd –
Debottleneck
Case 7. Expand Kent distillation by 40 Mbpsd and S. Wales by 34 Mbpsd –
Debottleneck
Case 8. Expand S. Wales distillation by 75 Mbpsd – Grassroots
There was in addition one sub-case for each of cases 4, 6, 7, and 8. These
sub-cases took into account special depreciation allowances for the S. Wales
refinery.
The Results
The discounted cash flows at 10 % for the eight cases and the four sub-cases were
calculated for the entire period as shown in Table 4. (This took into account the
company’s long-range plan and forecast.) The preferred case was case 6 with the
cognizance of the S. Wales refinery depreciation allowance. The cash flows for
these cases are as follows:
Petroleum Refinery Planning and Economics
693
summarized below. Thus, Table 3 gives the product deficiencies/surplus versus
crude requirement to satisfy product deficiencies over those years.
See the following notes for Table 3:
1. Swing capacity is defined as the sum of international bunkers plus volume
of seasonal storage. It is assumed that crude is run for international bunkers
in the summer if necessary, and an equal volume of fuel oil is imported in
the winter against inland fuel oil requirements. Thus, swing capacity represents
the volume of crude which can be run in the summer against winter
requirements.
2. Net crude is the volume of crude running capacity required in summer and
winter when maximum use is made of swing capacity.
3. Minimum crude capacity is the volume of distillation capacity which must be
available just to meet deficiencies and making maximum practical use of the
swing capacity.
Eight basic schemes were studied to meet the minimum capacities for satisfying
the deficiencies. These were as follow:
Case 1. Expand Kent distillation by 82 Mbpsd – Debottleneck
Case 2. Expand Kent distillation by 34 Mbpsd on CDU 101 and 50 Mbpsd on
CDU 102
Case 3. Expand Kent distillation by 50 Mbpsd on CDU 101 and 34 Mbpsd on
CDU 102
Case 4. Expand S. Wales distillation by 100 Mbpsd – Grassroots
Case 5. Expand Kent distillation by 100 Mbpsd – Grassroots
Case 6. Expand Kent distillation by 34 Mbpsd and S. Wales by 40 Mbpsd –
Debottleneck
Case 7. Expand Kent distillation by 40 Mbpsd and S. Wales by 34 Mbpsd –
Debottleneck
Case 8. Expand S. Wales distillation by 75 Mbpsd – Grassroots
There was in addition one sub-case for each of cases 4, 6, 7, and 8. These
sub-cases took into account special depreciation allowances for the S. Wales
refinery.
The Results
The discounted cash flows at 10 % for the eight cases and the four sub-cases were
calculated for the entire period as shown in Table 4. (This took into account the
company’s long-range plan and forecast.) The preferred case was case 6 with the
cognizance of the S. Wales refinery depreciation allowance. The cash flows for
these cases are as follows:
Petroleum Refinery Planning and Economics
693