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Expired Canadian patentCanada

Installation (plant) for thermo-cracking a hydrocarbon starting material to alkene, shell and tube heat exchanger for use in such an installation and process for manufacturing shell and tube heat exchanger

CA 1210282 A · Owner: Pyrotec N.V. · Inventors: Ranzi, Eliseo; Barendregt, Simon; Dente, Mario

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Abstract From the Canadian patent

The invention relates to an installation (plant) for thermocracking a hydrocarbon starting material to alkenes comprising a cracking, furnace with externally heated reactor tubes (coils) and a shell and tube heat exchanger ("quench", cooler "transfer line" heat, exchanger,TLX) to be used for quenching the reactor effluent and connected to the cracking furnace, wherein on the shell side steam is generated, wherein the internal surface of the tubes of the heat exchanger is coated with an inert layer impermeable to the materials in the reactor effluent which are responsible for the fouling, said layer masking the alloy of which the heating exchanger tubes consist. Said layer has a thickness of …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted August 26, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 26, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 6, 1983
GrantedAugust 26, 1986
Term endedAugust 26, 2003
Patent numberCA 1210282 A
Classification (IPC)B01J19/02 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedDec 6, 1983Patent grantedAug 26, 1986Term endedAug 26, 2003

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.