Pyrolysis process for stabilizing volatile hydrocarbons utilizing a beneficially reactive gas
In a process for recovery of values contained in solid carbonaceous material, the solid carbonaceous material is comminuted and then subjected to pyrolysis in the presence of a capping agent, a carbon containing solid particulate source of heat and a beneficially reactive transport gas in a transport flash pyrolysis reactor, to form a pyrolysis product stream. The solid carbonaceous material is pyrolyzed and newly formed volatilized hydrocarbon free radicals are substantially simultaneously terminated by the capping agent to form a pyrolysis product stream. The pyrolysis product stream contains a gaseous mixture and particulate solids which are separated from the gaseous mixture to form a substantially particulate solidsfree gaseous mixture stream which contains capping agent terminated volatilized hydrocarbon free radicals, hydrogen depleted capping agent, pyrolysis product vapors and a transport gas. The beneficially reactive transport gas inhibits the reactivity of the char product. Hydrocarbons of four or more carbon atoms in the vapor mixture stream are condensed. A liquid stream containing the stabilized liquid product is then treated or separated into various fractions. A liquid containing the hydrogen depleted capping agent is hydrogenated to form a regenerated capping agent, at least a portion of which is recycled to the pyrolysis zone. In another embodiment the capping agent is produced by the process, separated from the liquid product mixture, and recycled.
- Assignee:
- Occidental Research Corp
- Patent Number(s):
- US 4324644
- OSTI ID:
- 6466908
- Resource Relation:
- Patent File Date: Filed date 26 Aug 1980; Other Information: PAT-APPL-181599
- Country of Publication:
- United States
- Language:
- English
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Pyrolysis process for producing condensed stabilized hydrocarbons utilizing a beneficially reactive gas
Pyrolysis process utilizing a beneficially reactive gas
Related Subjects
CARBONACEOUS MATERIALS
PYROLYSIS
HYDROCARBONS
RADICALS
STABILIZATION
VAPOR CONDENSATION
HYDROGEN TRANSFER
HYDROGENATION
PARTICULATES
PYROLYSIS PRODUCTS
QUENCHING
SEPARATION PROCESSES
TURBULENCE
VOLATILE MATTER
CHEMICAL REACTIONS
DECOMPOSITION
MATERIALS
MATTER
ORGANIC COMPOUNDS
PARTICLES
THERMOCHEMICAL PROCESSES
020400* - Petroleum- Processing