New Technology for Production of Dicyclopentadiene and Methyl-Dicyklopentadiene

Abstract

ORLEN Unipetrol’s Steam Cracking unit processes a wide range of hydrocarbons from gases to heavy oils produced in refinery processes. Due to the heavy feedstock, the Steam Cracking unit can produce very valuable hydrocarbons such as cyclopentadiene and dicyclopentadiene in addition to ethylene, propylene and benzene. These hydrocarbons can be obtained and used as very profitable monomers for many other chemical applications. ORLEN Unipetrpol, in cooperation with the University of Chemistry and Technology in Prague, has developed a technology for the isolation of technical dicyclopentadiene of both medium purity grades and high purity grades. Making DCPD grades will add considerable value to the raw C5 by-product stream from the Steam Cracker pyrolysis gasoline. The capacity of the new existing DCPD unit is expected to be in the range of 20–26 thousand metric tons per year, depending on the derivative product portfolio and purity of the DCPD. The construction of the unit started in September 2020, and production is expected to be launched in the second half of 2022.

Effective application of operator training simulator in experiential education

“…The operator training simulator was originally developed to train operators for the newly developed for DCPD production site [8]. Thus, even before the actual start‐up of the DCPD production plant, the operators could undergo detailed training to gain experience in off‐line operation and avoid possible damages or production losses on the real production equipment.…”

Encapsulated Transition Metal Catalysts Enable Long-term Stability in Frontal Polymerization Resins

“…Frontal ring opening metathesis polymerization (FROMP) of dicyclopentadiene generates a high-performance poly­(dicyclopentadiene), pDCPD, thermoset with desirable physicochemical properties (Figure ). − Due to the high reactivity between DCPD and metathesis catalysts, spontaneous thermal initiation and bulk polymerization occur rapidly at room temperature. For example, initiation occurs instantaneously when using a widely employed ruthenium metathesis catalyst, Grubbs second generation catalyst ( GC2 ) .…”

Tungsten Oxo and Tungsten Imido Alkylidene N-Heterocyclic Carbene Complexes for the Visible-Light-Induced Ring-Opening Metathesis Polymerization of Dicyclopentadiene

“…, the synthesis of highly stereoregular polymers − or the use of latent catalysts that are activated upon the application of an external stimulus. , The latter enables novel processing strategies of industrially relevant monomers. A prominent example is the ring-opening metathesis polymerization (ROMP) of dicyclopentadiene (DCPD); the resulting pDCPD is a thermosetting polymer, which due to its desirable thermal and chemical stability and high impact strength as well as corrosion resistance has found application in the automotive sector as heavy vehicle panels as well as in electronics and construction. − However, the usual processing of highly reactive mixtures of DCPD and a Mo-, W- or Ru-based initiator via reaction injection molding or resin transfer molding limits the application to large parts with simple geometries. Often inhibitors or retardersusually Lewis basesare added along the catalyst to delay the initiation for a certain time and, therefore, allow to fill more complex molds, which yet again comes along with processing hurdles such as the requirement for a relatively fast mixing with the monomer. , …”