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SPYRO is the best-in-class software for simulation of steam cracking furnaces.

TechnipFMC uses SPYRO as the key instrument in designing its ethylene furnaces. Furthermore, our PYROTEC department licenses SPYRO to petrochemical companies for rigorous simulation of their cracking furnaces. To date, the majority of ethylene producers worldwide are using SPYRO applications.

SPYRO simulations are based on a fundamental Kinetic Scheme of more than 3000 elementary reactions, which represents the radical chain mechanism for cracking of hydrocarbons, including 128 molecular and 20 radical components.

A rigorous coking model is implemented in SPYRO software, linking coke formation rates to feedstock composition, operating conditions, and furnace geometry parameters. The coking process is modelled both in the Radiant Coil and in the Transfer Line Exchanger (TLE) sections of a furnace.

To provide the consistent quality of simulation, PYROTEC configures detailed models of the client’s furnaces in each project. Thanks to the first principle models in the basis of the software, PYROTEC can configure a SPYRO model for any type of commercially available steam cracking furnace.

There are several feed characterization methods suitable for definition of gas and liquid feedstocks in SPYRO software. Depending on their feedstock license type, clients can simulate a wide range of steam cracking feedstocks, from ethane and all the way to heavy vacuum gasoils.

 

SPYRO Suite 7

SPYRO Suite 7 is a program for off-line simulation of steam cracking furnace operations. Use of SPYRO Suite 7 allows engineers to predict the product yields for a wide range of hydrocarbon feedstocks at any operating conditions.

A coke deposition model in SPYRO Suite 7 allows the users to estimate furnace run lengths in various operation scenarios, based on their specific decoking criteria.

Apart from single furnace yield simulations, SPYRO Suite 7 (Full Furnace Simulation) enables the user to model various complex cases, such as:

Typical applications of SPYRO Suite 7 program are, among the others:

Add-on: SPYRO-Excel Interface

SPYRO-Excel Interface is an add-on module to SPYRO Suite 7, which allows the users to perform individual furnace simulations directly from MS Excel program. It helps the user to streamline the yield calculation tasks, speeding up both the definition of input data and the post-processing of results. SPYRO-Excel Interface is especially efficient in the tasks with multiple simulations (e.g., comparing different operating conditions, yield sensitivity analysis, etc.).

Add-on: Material Balance Module (MBM)

Material Balance Module (MBM) is an add-on module for the next generation Offline SPYRO program. The main purpose of MBM is to simulate overall material balance of an ethylene plant in MS Excel environment.

To provide a ready-to-use solution, PYROTEC configures a complete model of a client’s ethylene plant in MBM, including the following sections:

To simulate a case of plant operation, the user shall define the key input parameters in MS Excel environment, including feed characterization, number of furnaces in operation, etc. Based on the input data, MBM calculates an overall material balance of the ethylene plant, as well as detailed product compositions:

Having this information, client can directly use it for economic evaluations or as an input for their production planning system.

Integrated SPYRO

Integrated SPYRO is a program for rigorous simulation of steam cracking furnaces within the third-party applications. It is most often used in Advanced Process Control (APC) and Real-Time Optimization (RTO) systems.

To meet the performance requirements of its target applications, Integrated SPYRO is using simplified furnace models, consisting of Radiant Coil, TLE, and Simple Firebox modules.

The input parameters of the program include feed characterization, furnace operating conditions, and specific adjustment parameters.

Based on these inputs, Integrated SPYRO predicts the key indicators of an ethylene furnace performance, and returns them to the hosting APC or RTO application.