Pyrolysis gas treatment including caustic scrubber

Methods and facilities are provided for recovering and purifying pyrolysis gas formed by pyrolyzing waste plastic. The purification process may include one or more treatment processes, including a caustic scrubber process, which may be included in or separated from a cracker facility. The gaseous ef...

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Bibliographische Detailangaben
Hauptverfasser:	POLACEK MICHAEL GARY, SLEVINSKY DAVID EUGENE, BETTING DARRYL, WU XIANCHUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY CRACKING HYDROCARBON OILS DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA SEPARATION TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORTING
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Beschreibung
Zusammenfassung:	Methods and facilities are provided for recovering and purifying pyrolysis gas formed by pyrolyzing waste plastic. The purification process may include one or more treatment processes, including a caustic scrubber process, which may be included in or separated from a cracker facility. The gaseous effluent stream obtained from the caustic scrubber is particularly suitable for recovering chemical products and by-products recovered from downstream cryogenic separation processes. 提供了用于回收和净化通过热解废塑料形成的热解气的方法和设施。该净化方法可以包括一个或多个处理工艺，包括苛性碱洗涤器工艺，其可以包括在裂化器设施中或与裂化器设施分离。从苛性碱洗涤器得到的气体流出物流特别适用于回收从下游低温分离工艺中回收的化学产物和副产物。