Controlled catalytic and thermal sequential pyrolysis and hydrolysis of phenolic resin containing waste streams to sequentially recover monomers and chemicals
A process is described for using fast pyrolysis in a carrier gas to convert a waste phenolic resin containing feedstreams in a manner such that pyrolysis of said resins and a given high value monomeric constituent occurs prior to pyrolyses of the resins in other monomeric components therein comprising: selecting a first temperature program range to cause pyrolysis of said resin and a given high value monomeric constituent prior to a temperature range that causes pyrolysis of other monomeric components; selecting, if desired, a catalyst and a support and treating said feedstreams with said catalyst to effect acid or basic catalyzed reaction pathways to maximize yield or enhance separation of said high value monomeric constituent in said first temperature program range to utilize reactive gases such as oxygen and steam in the pyrolysis process to drive the production of specific products; differentially heating said feedstreams at a heat rate within the first temperature program range to provide differential pyrolysis for selective recovery of optimum quantity of said high value monomeric constituent prior to pyrolysis of other monomeric components therein; separating said high value monomeric constituent; selecting a second higher temperature program range to cause pyrolysis of a different high value monomeric constituent of said phenolic resins waste and differentially heating said feedstreams at said higher temperature program range to cause pyrolysis of said different high value monomeric constituent; and separating said different high value monomeric constituent. 11 figs.
- DOE Contract Number:
- AC02-83CH10093
- Assignee:
- MRI Ventures, Inc., Kansas City, MO (United States)
- Patent Number(s):
- US 5136111; A
- Application Number:
- PPN: US 7-710440
- OSTI ID:
- 7205648
- Resource Relation:
- Patent File Date: 7 Jun 1991
- Country of Publication:
- United States
- Language:
- English
Similar Records
Controlled catalytic and thermal sequential pyrolysis and hydrolysis of polymer waste comprising nylon 6 and a polyolefin or mixtures of polyolefins to sequentially recover monomers or other high value products
Controlled catalytic and thermal sequential pyrolysis and hydrolysis of mixed polymer waste streams to sequentially recover monomers or other high value products
Related Subjects
MONOMERS
MATERIALS RECOVERY
PHENOLS
HYDROLYSIS
PYROLYSIS
CATALYTIC CRACKING
INDUSTRIAL WASTES
SEPARATION PROCESSES
TEMPERATURE CONTROL
AROMATICS
CHEMICAL REACTIONS
CONTROL
CRACKING
DECOMPOSITION
HYDROXY COMPOUNDS
LYSIS
MANAGEMENT
ORGANIC COMPOUNDS
PROCESSING
SOLVOLYSIS
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management