Processing Technology Innovations to Drive the Production of Pyrolysis Gasoline (Pygas)

Found as a by-product during the high temperature production of ethylene and propylene, the colorless pygas (pyrolysis gasoline) is a great source of octane and aromatics, which has made it a key additive in modern automobile fuels. Alternatively, pygas may also be separated into its individual components such as xylene, toluene, and benzene. Its relatively higher unit value in comparison to conventional naphta is one of the key drivers that encourages businesses to produce and sell this material.

Manufacturers Invest in Research & Development Initiatives for Innovative Production Techniques

Innovative technologies in production and processing pyrolysis gasoline is anticipated to provide lucrative opportunities to manufacturers, owing to the increased use of octane compounds in motor fuels, and its use as a source for fuel oil products.

For example, GTC Technology LLC of the United States makes use of an innovative 2-step, hydro treating procedure, which allows for improved saturation of styrene, olefins, and di-olefins, through a preheating process of pygas feed stream along with hydrogen, which allows producers to achieve higher flexibility in the cut point of prefractionators, and the potential of polymerization. The process also minimizes the plugging of polymer byproducts and vaporization of hydrocarbons, and simultaneously improves on aspects such as the run length of the reactor, higher stability, resistance to poison, and heat integration, among others.

Shell has also revealed details on its use of CRI catalyst, to build on the reliability of the hydrogenation of pyrolysis gasoline, which is an effective solution to the problems faced while processing highly reactive pygas. Short cycles of reactor activity, increased polymerization, and pressure drops that increase the chances of fouling.  The hydrogenation process optimizes the characteristics of the feed, and the utilization of catalysts and grading, which claims to reach or exceed the production targets, when implemented correctly.

Similarly the SK Corporation patented their process of extracting BTX aromatics and other value-added components through a unique catalytic hydrodealkylation procedure that extracts the components of stabilized pygas through the resultant low ethyl-benzene mixture of BTX, LPG, and fuel gas.

Manufacturers Shifting Pygas Production from Naphtha to Ethane Feedstock

Pygas manufacturers are constantly facing challenges in maintaining their operations despite frequent fluctuations in the price of raw materials that are needed for the pyrolysis gasoline procedure. This is a key factor that is anticipated to restrict the market in the near future. To counter this issue, manufacturers are increasingly adopting alternative raw materials such as ethane to replace the conventional resources of naphtha in their operations.

A recent study by Chem Systems Ltd. found that the extraction of ethane from associated gases is one of the most cost-effective ways of extracting ethylene, and other byproducts. This is anticipated to sustain a steady growth of pygas producers in the near future.

The demand for such blends is anticipated to be influenced by factors such as unusually strict access to oil reserves, increasing production capacities, GDP, and utilization rates among others.

Design Innovations in Steam Crackers to Improve Production Processes

Steam crackers are frequently used equipment in the process of pyrolysis gasoline production, with innovations in design, production of pygas is anticipated to see better prospects in the near future. For example, Kellogg Brown and Root LLC in collaboration with SK Innovation Global Technology has created steam crackers with their Advanced Catalytic Olefins technology that is able to extract higher amounts of ethylene and propylene, by up to 25% , at lower energy consumption.

On a similar note Exxon Mobil patented a steam cracker with a unique fluid solids naphtha cracking process, which is dependent on reactor design, catalyst optimization, and operating conditions that allows adjustment in the selectivity of reactions, which provides manufacturers significant economic benefits in comparison to conventional processes.

To know more? Download sample copy of this report.

About Sandali 225 Articles
A former journalist, Sandali is a content marketer with over 5 years of writing experience, across various industries including Food Innovation, Healthcare, and IoT and Technology. Sandali has been weaving corporate stories for organizations through different forms of impactful marketing content. Her key aim is to strategically align well-crafted narratives with business objectives, translating into a powerful communications platform for the company.