Читать книгу Petroleum Refining Design and Applications Handbook - A. Kayode Coker - Страница 45

The project engineer appoints a chief process engineer who puts together a process design team to be responsible for all the chemical engineering aspects of the plant. The term “process design” is used here to include what is sometimes referred to as process engineering. Yet in some process engineering operations, all process design functions may not be carried out in detail. As discussed, process design is intended to include the following:

1 1. Process material and heat balances.

2 2. Process cycle development, correlation of pilot or research data, and correlation of physical property data.

3 3. Auxiliary services material and heat balances.

4 4. Flowsheet development and detailed completion.

5 5. Chemical engineering performance design for specific items of equipment required for a flowsheet, and mechanical interpretation of this to a practical and reasonable specification. Here, the process requirements are converted into hardware details to accomplish the process end results at each step in the product production process.

6 6. Instrumentation as related to process performance, presentation, and interpretation of requirements to instrument specialists.

7 7. Process interpretation for proper mechanical, structural, civil, electrical, instrument, and so on, handling of the respective individual phases of the project.

8 8. Preparation of specifications in proper form and/or detail for use by the project team as well as for the purchasing function.

9 9. Evaluation of bids and recommendation of qualified vendor.

Figure 14.3 The total plant design project.

Most of the functions are fairly self-explanatory; therefore, emphasis will be placed only on those requiring detailed explanation. Another process design scope issue for the process design team is to identify and scope any key layout issues early in the design effort or basic engineering and Front End Engineering Design (FEED). Such issues include concerns like:

1 1. Locations where gravity feed is used.

2 2. Product quality concerns where product residence times must be minimized

3 3. Equipment requiring easy access for maintenance.

Figure 14.3 provides an overview of the total plan design project.