Abstract
The energy supply side for a large oil, gas, refinery, or petrochemical facility is designed to provide the site with sufficient heating, cooling, and power utilities requirements. Reducing capital and operating costs from energy supply side is essential to maximize the value added from the industrial facility. Thus, optimization solutions are often developed to optimize industrial utility design and operation, reduce costs while improving the overall system’s efficiency and inevitably reducing CO2 emission. Our topic in the chapter is related to a new methodology that aims to identify the optimum design and operation of the energy supply side of a new industrial facility. One major cause for utility design inefficiency is the fact that in a typical project setup, there are different project teams handling the design of the utility supply side and process design independently. This often results in high capital cost, and lower operating efficiency. The potential improvement expected from the optimum design compared with a typical design case for a new industrial facility is over 15% from base-case life cycle cost. This chapter also covers several examples to explain the concept and expected benefits from applying a new Combined Heat and Power (CHP) optimization solution during new project design.
Highlights
Today, optimizing energy consumption, improving energy efficiency, and reducing GHG emissions are essential for a sustainable operation and lower operating cost of an industrial facility such as Oil, Gas, Refining, and Petrochemical facilities
Every industrial facility depends on more than one form of utilities for its operation. Examples of these utilities include power generation, steam system, instrument and plant air, nitrogen system, hot oil system, etc. Process streams such as gas and liquid are usually heated or cooled by indirect heat exchange with another fluid: either another process stream or a utility stream such as steam, hot oil, cooling water, or refrigerant
Case-3: in this case, the combined heat and power (CHP) configuration composed of two Cogen units, four boilers, and two STGs resulted in steam system supply-side efficiency around 69%
Summary
Today, optimizing energy consumption, improving energy efficiency, and reducing GHG emissions are essential for a sustainable operation and lower operating cost of an industrial facility such as Oil, Gas, Refining, and Petrochemical facilities. Every industrial facility depends on more than one form of utilities for its operation Examples of these utilities include power generation, steam system, instrument and plant air, nitrogen system, hot oil system, etc. Process streams such as gas and liquid are usually heated or cooled by indirect heat exchange with another fluid: either another process stream or a utility stream such as steam, hot oil, cooling water, or refrigerant. The generated steam is used to drive a steam turbine generator (known as a combined cycle) or sent to a process plant to be used as a heating medium in a heat exchanger or to mechanically drive rotating equipment such as pumps and compressors (known as cogeneration)
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