Patent ID: 9011561
Filing Date: 2015-04-21
Classification: B01J,C01B,C10J,C10K,Y02P

Abstract:
1. A feedstock processing system having a solids circulation system configured to capture and convert reactive solids, comprising: a first reactor configured to receive a feedstock and, in response to said feedstock, output a first stream via a first conduit, the first stream comprising gas and particulate matter; a second reactor having a dense fluid bed and configured to receive reactive solids comprising a first portion of said particulate matter and also receive bed solids originating from said dense fluid bed; a first riser connected at a first end to the dense fluid bed of the second reactor and at a second end to said first conduit, the first riser configured to convey said bed solids to said first conduit; a first separation device connected to the first conduit and also to a second conduit, the first separation device configured to receive a mixture of said bed solids and said first stream and separate said mixture into an intermediate solids mixture which is conveyed to the dense fluid bed of the second reactor and a first-stage product gas stream which enters the second conduit; a dipleg connected at a first end to the first separation device and at a second end to the second reactor, the dipleg configured to convey the intermediate solids mixture from the first separation device to the dense fluid bed of the second reactor; and a second separation device connected to the second reactor, the second separation device configured to output a product gas formed in the second reactor, wherein: the first riser, the first separation device, the dipleg and the second reactor together form a solids circulation loop for capturing and converting particulate matter in the first stream.