Basic Engineering Design

Chemical Engineering Partners provides Basic Engineering Package services for each client. This package typically includes the following deliverables:

• Design Basis: Site-specific meteorological and ambient conditions as well as required characteristics of utility supply systems are summarized. Hydrogen Generation options will be identified so that the best choice for hydrogen supply for the re-refinery can be determined. For plants that are to get integrated with existing facilities the customer's participation is required to complete this task.

• Process Description: The purpose and characteristics of key process unit operations and equipment are outlined in narrative form.

• Equipment List: A list is provided to identify all required process equipment.

• Process Flow Diagrams and Heat & Material Balances: A process simulation for the plant is developed. All process streams are defined in tabular and flow sheet format. Temperatures, pressures, flow rates, and physical properties at normal operating conditions are defined for all process streams.

• Piping and Instrumentation Diagrams: A diagram is provided to show the interconnection of process equipment and the instrumentation used to control the process. Interconnection of key process utilities (hydrogen, steam, hot oil, etc.) is identified.

• Process Equipment Data Sheet: Process data sheets are provided for all Inside Battery Limit (ISBL) equipment items.

• Instrument List: Control valves, level instruments, flow instruments, pressure instruments, temperature instruments and relief devices are identified and provided.

• Piping: A piping specification and piping classification index are provided.

• Control Philosophy: A narrative is provided to describe the control logic and interlock schemes. A preliminary list of typical alarms is provided based on prior experience with our operating plants.

• Effluent Stream List: Quantities and characteristics of all effluent streams are defined. Specific items included are:
  • List of vapor emission sources
  • Composition and flow rate of process off gas and evaluation of whether this material can be sent to the hot oil heater or must be sent to a thermal oxidizer.
  • Hot Oil Heater and Steam Generation Boiler characteristics, evaluation of flue gas treating requirements and definition of effluent flue gas treating system requirements
  • Liquid Effluent Streams
  • Solid Waste quantities and type
  • By-product quantities and characteristics
  • Sulfur Balance

• Quality Assurance and Laboratory Information: A discussion of the routine analytical testing required for a waste oil re-refinery is provided. Typical sampling points are discussed and a summary of laboratory procedures and equipment is defined.

• Utilities Consumption: Required chemicals and utilities are identified and consumption rates are shown for treating chemicals, catalyst, steam, water, nitrogen, air, hydrogen, etc.