公开(公告)号：US20190099714A1

公开(公告)日：2019-04-04

申请号：US16086477

申请日：2017-02-21

申请人： MITSUBISHI HITACHI POWER SYSTEMS, LTD.

发明人： Tsuyoshi Miyachi ,  Seiji Kagawa ,  Naoyuki Kamiyama ,  Tetsu Ushiku

IPC分类号： B01D53/50 ,  B01D53/76 ,  B01D53/86 ,  B03C3/019 ,  F23J15/00

CPC分类号： B01D53/50 ,  B01D53/501 ,  B01D53/58 ,  B01D53/76 ,  B01D53/78 ,  B01D53/8609 ,  B01D53/8631 ,  B01D53/869 ,  B01D53/90 ,  B01D2251/2062 ,  B01D2251/502 ,  B01D2258/0283 ,  B03C3/017 ,  B03C3/019 ,  F23J15/003 ,  F23J15/006 ,  F23J15/025 ,  F23J15/06 ,  F23J15/08 ,  F23J2211/00 ,  F23J2215/10 ,  F23J2215/20 ,  F23J2217/102 ,  F23J2219/10 ,  F23J2900/15081

摘要： An air pollution control system includes adenitration device that removes nitrogen oxide in flue gas from a boiler; a heat transfer tube for recovering part of heat of the flue gas after denitration; a precipitator that removes soot and dust in the flue gas after heat recovery; a desulfurization device that removes sulfur oxide in the flue gas discharged from the precipitator; a heat transfer tube for heating the flue gas discharged from the desulfurization device; a circulation pump that circulates a heat medium between the heat transfer tubes; a heat medium heater provided to the circulation pipe to heat the heat medium; and a control device that controls the heat medium heater based on an ammonia concentration at an outlet of the denitration device. The control device causes the heat medium heater to heat the heat medium when the ammonia concentration is higher than a certain value.

公开(公告)号：US20180274779A1

公开(公告)日：2018-09-27

申请号：US15991260

申请日：2018-05-29

申请人： PEERLESS MFG.CO.

发明人： James M. Valentine ,  Edmund S. Schindler ,  Jeffrey Michael Broderick ,  R. Gifford Broderick ,  John N. Dale

IPC分类号： F23J15/00

CPC分类号： F23J15/003 ,  B01D53/56 ,  B01D53/60 ,  B01D53/79 ,  F23J15/00 ,  F23J2215/10 ,  F23J2219/20

摘要： A system for controlling a reagent flow to a furnace in a SCNR process includes at least one injection distribution module (IDM) for supplying water to a plurality of injection lances, metering valves for supplying a NOx reducing agent to the plurality of injection lances, wherein the reagent injection rate of each injection lance is controlled by one metering valve such that a reagent concentration in each injection lance is adjustable and variable from one another. A method for controlling a reagent flow to a furnace includes providing at least one IDM, and for each IDM, providing a plurality of injection lances in communication with the IDM, supplying water to the plurality of injection lances through the IDM and supplying a NOx reducing agent through metering valves, wherein each metering valve controls the reagent injection rate to one injection lance.

公开(公告)号：US20180200672A1

公开(公告)日：2018-07-19

申请号：US15746445

申请日：2016-07-25

申请人： VPC GmbH

发明人： Jan Schütze ,  Ralf Paeslack

IPC分类号： B01D53/83 ,  B01D53/86 ,  B01J23/745 ,  B01J35/02 ,  F23J15/00

CPC分类号： B01D53/83 ,  B01D53/8665 ,  B01D2255/20723 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/20746 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/20776 ,  B01D2255/20784 ,  B01D2255/20792 ,  B01D2257/2045 ,  B01D2257/302 ,  B01D2257/602 ,  B01D2258/0283 ,  B01J23/745 ,  B01J35/023 ,  F23J15/003 ,  F23J2215/60 ,  F23J2219/10

摘要： The invention relates to a method for separating mercury (Hg) from furnace gases of combustion plants, wherein a catalytically active material having a mean grain diameter

公开(公告)号：US20180193796A1

公开(公告)日：2018-07-12

申请号：US15741814

申请日：2016-07-27

申请人： MITSUBISHI HITACHI POWER SYSTEMS, LTD.

发明人： Manabu Oda ,  Hiroshi Kako ,  Hideo Miyanishi ,  Tomoaki Isobe

IPC分类号： B01D53/90 ,  F23J15/00 ,  F23J15/08 ,  F23C7/00

CPC分类号： B01D53/90 ,  B01D53/8631 ,  B01D2251/20 ,  B01D2258/0283 ,  F22D1/36 ,  F23C7/008 ,  F23J15/00 ,  F23J15/003 ,  F23J15/08 ,  F23J2215/10 ,  F23J2215/20

摘要： This boiler has a flue in which a reducing agent supplying device and a selective reduction catalyst are provided, a bypass flow path bypassing economizers is provided, and a first closing device partially closing the bypass flow path and a second closing device partially closing the flue are also provided. A plurality of first closing members, serving as the first closing device, are provided along the direction in which exhaust gas flows through the flue at a predetermined spacing in the width direction of the flue. A plurality of second closing members, serving as the second closing device are provided along the vertical direction at a predetermined spacing in the width direction of the flue. The first closing members and the second closing members are arranged so as to be displaced from each other in the width direction of the flue.

公开(公告)号：US20180149358A1

公开(公告)日：2018-05-31

申请号：US15361618

申请日：2016-11-28

申请人： S. A. Lhoist Recherche et Developpement

发明人： Hugues Baquet ,  Johan Heiszwolf ,  Joel Letouzey ,  David Lyons

IPC分类号： F23J15/02 ,  B65G53/06 ,  B65G53/58

CPC分类号： F23J7/00 ,  B65G53/521 ,  F23J15/003 ,  F23J15/006

摘要： Process and device for pneumatically conveying a powdery material comprising the steps of Pneumatically conveying a powdery material in a pneumatic conveying pipeline (first) and into said recipient by a flow generated by a blower, A powdery material dosing step, A fluctuation step of pressure drop in said pneumatic conveying pipeline or up to said recipient, wherein a sonic device generates sonic waves inside said pneumatic conveying pipeline or up to said recipient and provides a counteraction on the fluctuation step of the pressure drop in said pneumatic conveying pipeline or up to said recipient.

公开(公告)号：US09874350B2

公开(公告)日：2018-01-23

申请号：US14246380

申请日：2014-04-07

申请人： Babcock & Wilcox Power Generation Group, Inc.

发明人： Mandar R Gadgil ,  S. Behrooz Ghorishi ,  Donald P Tonn

IPC分类号： F23J15/00 ,  F23J7/00 ,  B01D53/64 ,  B01D53/86 ,  B01D53/46 ,  B01D53/90 ,  F23N5/00

CPC分类号： F23J15/003 ,  B01D53/46 ,  B01D53/64 ,  B01D53/8631 ,  B01D53/8696 ,  B01D53/90 ,  B01D2251/108 ,  B01D2251/304 ,  B01D2251/306 ,  B01D2251/404 ,  B01D2251/60 ,  B01D2255/20738 ,  B01D2257/55 ,  B01D2257/602 ,  B01D2258/0283 ,  F23C2201/101 ,  F23J7/00 ,  F23J15/006 ,  F23J2215/20 ,  F23J2217/101 ,  F23J2217/102 ,  F23J2219/10 ,  F23J2219/40 ,  F23J2219/60 ,  F23K2201/505 ,  F23N5/003

摘要： The present invention relates generally to the field of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants, etc.) and, in particular to a new and useful method and apparatus for reducing or preventing the poisoning and/or contamination of an SCR catalyst. In another embodiment, the method and apparatus of the present invention is designed to protect the SCR catalyst. In still another embodiment, the present invention relates to a method and apparatus for increasing the service life and/or catalytic activity of an SCR catalyst while simultaneously controlling various emissions.

公开(公告)号：US20170261206A1

公开(公告)日：2017-09-14

申请号：US15509967

申请日：2015-09-09

申请人： MITSUBISHI HEAVY INDUSTRIES ENVIRONMENTAL & CHEMICAL ENGINEERING CO., LTD.

发明人： Masayuki MAWATARI ,  Yoshimasa SAWAMOTO ,  Kouji NAMERISAWA

IPC分类号： F23G5/04 ,  F23G5/14 ,  F23J15/00 ,  F23G5/44 ,  F23J7/00

CPC分类号： F23G5/04 ,  F23G5/00 ,  F23G5/14 ,  F23G5/165 ,  F23G5/44 ,  F23G5/442 ,  F23G2201/10 ,  F23G2900/00001 ,  F23J7/00 ,  F23J15/003

摘要： A stoker-type incinerator includes: a recirculated exhaust gas supply unit which allows exhaust gas resulting from treating combustion gas to reflux to a combustion gas channel via a recirculated exhaust gas nozzle provided on the combustion gas channel and supplies the exhaust gas as recirculated exhaust gas. The stoker-type incinerator further includes a secondary combustion air supply unit which supplies secondary combustion air on a downstream side of the recirculated exhaust gas nozzle on the combustion gas channel via a secondary combustion air nozzle provided on the combustion gas channel, in which the recirculated exhaust gas nozzle and the secondary combustion air nozzle are arranged in different positions in a plan view.

公开(公告)号：US20170225119A1

公开(公告)日：2017-08-10

申请号：US15503208

申请日：2015-08-12

申请人： NORAM ENGINEERING AND CONSTRUCTORS LTD.

发明人： Andrés MAHECHA-BOTERO ,  Xuantian LI

IPC分类号： B01D53/60 ,  B01D53/62 ,  B01D53/86 ,  B01D53/50

CPC分类号： B01D53/60 ,  B01D53/002 ,  B01D53/1406 ,  B01D53/145 ,  B01D53/50 ,  B01D53/502 ,  B01D53/62 ,  B01D53/76 ,  B01D53/86 ,  B01D53/8609 ,  B01D53/8631 ,  B01D53/869 ,  B01D2252/103 ,  B01D2255/102 ,  B01D2255/20723 ,  B01D2258/012 ,  B01D2258/0283 ,  F23G7/07 ,  F23J15/003 ,  F23J15/006 ,  F23J15/025 ,  F23J2215/20 ,  F23J2219/40 ,  F23J2219/60 ,  F23J2900/15004 ,  Y02A50/2344 ,  Y02A50/2348 ,  Y02C20/30

摘要： A process for cleaning process gas removes sulfur oxides (SOx), nitrogen oxides (NOx), and particulate matter (PM) to produce a tail gas substantially free of these pollutants. The process oxidizes and absorbs SOx and NOx for storage as liquid acids. In some embodiments a PM removal stage and/or a SOx removal stage are provided in a close-coupled higher-pressure environment upstream from a turbocharger turbine. The process has example application in cleaning exhaust gases from industrial processes and large diesel engines such as ship engines.

公开(公告)号：US09669356B2

公开(公告)日：2017-06-06

申请号：US14760122

申请日：2013-11-18

申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Toshihiro Fukuda ,  Seiji Kagawa ,  Yoshito Tanaka ,  Takuro Soeda

IPC分类号： B01D53/34 ,  B01D53/38 ,  B01D53/50 ,  B01D53/74 ,  B01D53/75 ,  B01D53/78 ,  B01D53/80 ,  F26B3/12 ,  F23J15/00 ,  F23J15/02 ,  F23J15/04 ,  F23J15/06

CPC分类号： B01D53/80 ,  B01D53/343 ,  B01D53/501 ,  B01D53/505 ,  B01D53/75 ,  B01D2251/404 ,  B01D2257/302 ,  B01D2257/404 ,  B01D2257/602 ,  B01D2258/0283 ,  F23J15/003 ,  F23J15/006 ,  F23J15/025 ,  F23J15/04 ,  F23J15/06 ,  F23J2215/10 ,  F23J2215/20 ,  F23J2217/50 ,  F23J2219/40 ,  F26B3/12 ,  Y02A50/2348 ,  Y02E20/363 ,  Y02P70/40

摘要： Provided is an air pollution control system including: a boiler, a denitration apparatus; an air heater; a precipitator; a desulfurization apparatus; a dehydrator; a concentration apparatus that is configured to remove some of water of dehydrated filtrate from the dehydrator; a spray drying apparatus provided with a spray unit that is configured to spray concentrated/dehydrated filtrate concentrated by the concentration apparatus; and a flue gas introduction line through which branch gas branched from the flue gas is introduced to the spray drying apparatus.

公开(公告)号：US09664383B2

公开(公告)日：2017-05-30

申请号：US14289697

申请日：2014-05-29

申请人： BABCOCK-HITACHI KABUSHIKI KAISHA

发明人： Hiroshi Yamakaji ,  Ryosuke Nakagawa ,  Satoru Shishido ,  Toru Ogasahara

IPC分类号： F01N3/20 ,  B01D53/86 ,  F23J15/00 ,  B01D53/90 ,  B01D53/94 ,  F23J15/04

CPC分类号： F23J15/003 ,  B01D53/90 ,  B01D53/9431 ,  B01D2251/2062 ,  B01D2259/124 ,  F23J15/04 ,  F23J2215/10 ,  F23J2219/10

摘要： There is provided a denitrification apparatus capable of reducing NOx from a combustion facility and preventing evaporation of a reducing liquid in a lance and an injection nozzle in the combustion facility in operation at a low load by adjusting concentration of a reducing agent, thereby achieving complete evaporation of the reducing liquid in an exhaust gas duct. The denitrification apparatus of the present invention includes: a nozzle for spraying a reducing liquid containing a reducing agent for reducing nitrogen oxides in exhaust gas discharged from a combustion facility into the exhaust gas by using a flow of gas; a gas supply unit for supplying the gas to the nozzle; a reducing liquid supply unit for supplying the reducing liquid to the nozzle; and a concentration control unit for adjusting concentration of the reducing agent on the basis of a temperature of the exhaust gas and a supply amount of the reducing liquid by supplying a diluting liquid to the reducing liquid so that the reducing agent is not vaporized in the reducing liquid supply unit.