Emissions recovery systems for industrial facilities, and associated assemblies and methods

Abstract

Systems and methods for recovering emissions from industrial facilities are disclosed herein. The systems can include an emissions recovery system for use in an industrial facility comprising ducting, a first vent, and a second vent at an opening. The ducting can have a first end region fluidically coupled to a baghouse, and a second end region, opposite the first. The ducting can be configured to operate under a vacuum. The first vent and the second vent can each be fluidically coupled to the second end region of the ducting. The first vent can be positionable at a first distance from the opening, and the second vent can also be positionable at a second distance from the opening. Each of the first and the second vents can be configured to collect emissions particles released from at least the opening.

I/We claim: 
     
         1 . An emissions recovery system for use in an industrial facility, comprising:
 ducting having a first end region fluidically coupled to a baghouse and a second end region opposite the first end region, wherein the ducting is configured to operate under a vacuum;   a first vent fluidically coupled to the second end region, wherein the first vent is positionable at a first distance from an opening and configured to collect emissions particles released from the opening; and   a second vent fluidically coupled to the second end region, wherein the second vent is positionable at a second distance from the first vent and configured to collect emissions particles released from the opening.   
     
     
         2 . The emissions recovery system of  claim 1 , further comprising a first ducting branch and a second ducting branch, each extending from the second end region, wherein the first ducting branch is fluidically coupled to a first end of the first vent and a first end of the second vent, and the second ducting branch is fluidically coupled to a second end of the first vent and a second end of the second vent. 
     
     
         3 . The emissions recovery system of  claim 1 , wherein the opening corresponds to a door of a coking oven. 
     
     
         4 . The emissions recovery system of  claim 1 , wherein the opening is a first opening corresponding to a charging door of a coking oven, the emissions recovery system further comprising a third vent positioned to collect emissions particles released from a second opening corresponding to a pushing door of the coking oven. 
     
     
         5 . The emissions recovery system of  claim 1 , further comprising a third vent fluidically coupled to the second end region, wherein the third vent is positionable at a third distance from the opening and configured to collect emissions particles released from the opening. 
     
     
         6 . The emissions recovery system of  claim 5 , further comprising a hood assembly at the third vent and configured to direct emissions particles released from at least the opening toward the third vent. 
     
     
         7 . The emissions recovery system of  claim 5 , wherein the first distance and the second distance each include a lateral distance component and a vertical distance component, and the third distance includes a vertical distance component. 
     
     
         8 . The emissions recovery system of  claim 1 , wherein the first vent and the second vent are each positionable about an axis along the respective lengths thereof. 
     
     
         9 . The emissions recovery system of  claim 1 , wherein the first vent and the second vent are each positionable along a lateral distance from the opening. 
     
     
         10 . The emissions recovery system of  claim 1 , wherein the first vent and the second vent are each positionable along a vertical distance from the opening. 
     
     
         11 . The emissions recovery system of  claim 1 , wherein the first vent and the second vent are each include a housing and a faceplate coupled to the housing, and wherein the faceplate includes a plurality of openings configured for emissions particles released from the opening to pass therethrough. 
     
     
         12 . The emissions recovery system of  claim 10 , wherein the first vent and the second vent each include a closure assembly configured to selectively modify a size of the openings of the first vent and the second vent, respectively. 
     
     
         13 . The emissions recovery system of  claim 1 , further comprising a non-return valve coupled to the ducting and configured to limit an airflow within the ducting as from the second end region to the first end region. 
     
     
         14 . The emissions recovery system of  claim 1 , further comprising a spark arrester coupled to the ducting between the first end region and the second end region, and configured to extinguish embers within the ducting. 
     
     
         15 . The emissions recovery system of  claim 1 , further comprising a temperature control valve coupled to the ducting between the first end region and the second end region, and configured to allow air from outside the ducting into the ducting to reduce a temperature therein. 
     
     
         16 . The emissions recovery system of  claim 1 , further comprising:
 an induced draft fan coupled to the ducting and configured to apply a pressure within the ducting;   a diverter coupled to the second end region of the ducting and configured to fully or partially divert the pressure applied by the induced draft fan between the first vent and the second vent;   a first hood assembly positioned to at least partially encase the first vent; and   a second hood assembly spaced apart from the first hood and positioned to at least partially encase the second vent,   wherein the first vent is configured to be positioned over a charging end of a charging ram,   wherein the second vent is configured to be positioned over a charging end of a pusher ram spaced laterally apart from the charging ram,   wherein, when the charging ram is in operation, the diverter is configured to divert the pressure primarily to the first vent, and   wherein, when the pusher ram is in operation, the diverter is configured to divert the pressure primarily to the second vent.   
     
     
         17 . An emissions recovery system for use in an industrial facility, comprising:
 a base ducting portion having a first end region fluidically coupled to a baghouse and a second end region opposite the first end region, wherein the base ducting portion is configured to operate under a vacuum;   a vent having a first end region and a second end region opposite the first end region, wherein the vent is positionable at an opening and configured to collect emissions particles released at the opening;   a first ducting branch extending from the second end region of the base ducting portion to the first end region of the vent; and   a second ducting branch extending from the second end region of the base ducting portion to the second end region of the vent.   
     
     
         18 . The emissions recovery system of  claim 17 :
 wherein the vent is a first vent, and the emissions recovery system further comprises a second vent having a first end region and a second end region opposite the first end region;   wherein the second vent is positionable at the opening and configured to collect emissions particles released at the opening;   wherein the first ducting branch further extends from the second end region of the base ducting portion to the first end region of the second vent; and   wherein the second ducting branch further extends from the second end region of the base ducting portion to the second end region of the second vent.   
     
     
         19 . The emissions recovery system of  claim 17 , wherein the first ducting branch and the second ducting branch each include a first sub-branch and a second sub-branch. 
     
     
         20 . The emissions recovery system of  claim 19 , wherein the first sub-branch of the first ducting branch is fluidically coupled to the first end region of the first vent, and the first sub-branch of the second ducting branch is fluidically coupled to the second end region of the first vent. 
     
     
         21 . The emissions recovery system of  claim 19 , wherein the second sub-branch of the first ducting branch is fluidically coupled to the first end region of the second vent, and the second sub-branch of the second ducting branch is fluidically coupled to the second end region of the second vent. 
     
     
         22 . A coking system, comprising:
 a coking oven including a charging door at a charging side of the oven; and   an emissions recovery system, including:
 ducting fluidically coupled to a baghouse and an induced draft fan, the ducting having a first ducting branch and a second ducting branch; 
 a first vent at a first distance from the charging door; and 
 a second vent at a second distance from the charging door, wherein each of the first vent and the second vent includes a first end fluidically coupled to the first ducting branch and a second end fluidically coupled to the second ducting branch. 
   
     
     
         23 . The coking system of  claim 22 , wherein the emissions recovery system further includes a third vent a third distance from the charging door, wherein the third vent includes a first end fluidically coupled to the first ducting branch and a second end fluidically coupled to the second ducting branch. 
     
     
         24 . The coking system of  claim 22 , wherein the induced draft fan is configured to establish a variable vacuum pressure within the ducting. 
     
     
         25 . The coking system of  claim 22 , wherein the induced draft fan is configured to apply a pressure within the ducting, and wherein the emissions recovery system further includes:
 a third vent at a third distance from the charging door; and   a diverter coupled to the ducting and configured to primarily divert the pressure applied by the induced draft fan to either (i) the first vent and the second vent or (ii) the third vent based on an operating mode of the coking system.