Question

In June 1980, Harry Sinclair, General Manager of the Texas Division of Agri-Chem Corporation, received notification...

In June 1980, Harry Sinclair, General Manager of the Texas Division of Agri-Chem Corporation, received notification from Ben Elliot of Enerco that natural gas supplies were being rapidly depleted. In the event of a shortage, Enerco, the main producer and distributor of natural gas in the Gulf South region, would allocate gas to its customers under the following provisions established by the Federal Power Commission:

First Priority: Residential and commercial heating and cooling

Second Priority: Commercial and industrial firms that use natural gas as a source of raw material

Third Priority: Industrial firms that use natural gas as a boiler fuel

Elliot related to Sinclair that most of Agri-Chem's uses were in the second and third priority classifications. Hence, Agri-Chem would probably be subjected to "rolling brownouts", temporary and periodic curtailments of natural gas supplies. Enerco planned to monitor its pipeline pressures and order reductions to maintain minimum levels. Elliot preferred that Enerco's customers initiate the reduction process to minimize the effect on their industrial processes. Enerco was authorized, however, to curtail supplies unilaterally if pipeline pressure fell below minimum levels.

The natural gas shortage was created by the unprecedented heat wave of the summer of 1980. Electrical generating plants were operating at capacity to supply electricity to operate air conditioning and refrigeration units. Although long-range plans called for these utility companies to convert to coal, oil, or nuclear fuel, natural gas remained the dominant boiler fuel.

CURTAILMENT PLAN

Agri-Chem's problem was to determine which of its complexes would be least affected by a gas curtailment. Its Texas Division is located in the greater Houston area; plants are located in the suburbs of Deer Park and Battleground. Both of these areas would be included in the curtailment region in the event of a brownout. Except for Agri-Chem's ammonia operations, all gas purchased was used as boiler fuel. In its ammonia plant, gas was used as a source of raw materials. (The manufacture of ammonia uses natural gas in the steam reforming process.) In a detailed discussion with Elliot, Sinclair learned that Enerco would not specify the products to be curtailed. The curtailment procedure would be based primarily on a customer's usage pattern. Hence, Agri-Chem had the flexibility to absorb curtailments where they would have minimum impact on profits.

Based on this information, Sinclair called a staff meeting to discuss a contingency plan for allocation of natural gas among the firm's products if curtailments became a reality. The specific objective was to minimize the impact on profits/overhead contribution. After a week of study, the information in Tables 1 and 2 was presented to Sinclair.

TABLE 1 Contribution to profit and overhead

Product

$/Ton

Ammonia

80

Ammonium phosphate

120

Ammonium nitrate

140

Urea

140

Hydrofluoric acid

90

Chlorine

70

Caustic soda

60

Vinyl chloride monomer

90

TABLE 2 Operational data

Product

Capacity (tons/day)

Production Rate (% of capacity

Natural Gas Consumption

(1,000 cu. ft./ton)

Ammonia

1,500

80

8.0

Ammonium phosphate

600

90

10.0

Ammonium nitrate

700

70

12.0

Urea

200

80

12.0

Hydrofluoric acid

800

70

7.0

Chlorine

1,500

80

18.0

Caustic soda

1,600

80

20.0

Vinyl chloride monomer

1,400

60

14.0

Agri-Chem's contract with Enerco specified a maximum of 90,000 cu.ft. X 103 per day for its complexes. However, curtailments are projected to be based on actual usage rather than contractual maximums. The current natural gas usage is 85,680 cu. ft. x 103 per day. Enerco projects curtailments in the range of 20 to 40 percent.

1.Which of Agri-Chem's complexes would be least affected by a gas curtailment?

Homework Answers

Answer #1
Product Capacity (ton/day) Production % Actual capacity (ton/day) Price ($/ton) Natural gas used (cuft*106-3/ton) Price/Natural gas used ($/cuft)
Ammonia 1500 80 1200 80 8 10
Ammonium phosphate 600 90 540 120 10 12
Ammonium nitrate 700 70 490 140 12 11.6
Urea 200 80 160 140 12 11.6
Hydrofluoric acid 800 70 560 90 7 12.8
Chlorine 1500 80 1200 70 18 4
Caustic soda 1600 80 1280 60 20 3
Vinyl chloride monomer 1400 60 840 90 14 6.5

=> Maximum $/Natural gas = 12.8 for hydrofluoric acid. Therefore, Maximum effect on Revenue % per supply change of Natural gas occur for Hydrofluoric acid

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