公开(公告)号：US20240390838A1

公开(公告)日：2024-11-28

申请号：US18689452

申请日：2022-09-15

Applicant: Qinghua Huang

Inventor： Qinghua Huang

IPC: B01D53/10 ,  B01D53/86 ,  F23L15/00

Abstract: The present invention discloses a system for reducing ammonium bisulfate blockage in air preheaters of coal-fired power plants, comprising at least one powder, at least one powder injection device, and at least one powder storage device; Under the action of power, the powder enters the powder injection device from the powder storage device, and is then sprayed into the flue between the SCR denitrification reactor and the air preheater. The powder can selectively adsorb the precursor ammonia gas and/or sulfur trioxide of ammonium bisulfate, thereby reducing the generation of ammonium bisulfate, removing the ammonium bisulfate that causes blockage of the air preheater from the source, and reducing the deposition of ammonium bisulfate and/or ash on the heating surface of the air preheater. It has the characteristics of simple process, low equipment cost, low price of powder used, and low construction and operation costs.

公开(公告)号：US20240367090A1

公开(公告)日：2024-11-07

申请号：US18540678

申请日：2023-12-14

Applicant: Graymont (PA) Inc.

Inventor： Harold Wayne Lee, II ,  Laura L. Kinner ,  Douglas C. Murdock ,  Fred Douglas Blackham ,  John B. Heintzelman

IPC: B01D53/10 ,  B01D46/02 ,  B01D53/30 ,  B01D53/64 ,  B01D53/68 ,  F23J15/00 ,  F23J15/02 ,  F23J15/04 ,  F23J15/06 ,  F23J15/08

Abstract: Several embodiments of the present technology are directed to the removal of one or more air pollutants using cooling and/or calcium-containing particles. In some embodiments, a method for removing air pollutants comprises flowing a gas stream having calcium-containing particles and one or more of mercury or hydrochloric acid molecules, and cooling the gas stream, thereby causing at least a portion of the calcium-containing particles to adsorb to the mercury and/or hydrochloric acid molecules in the gas stream. The method can further comprise, after cooling the gas stream, filtering the gas stream to remove at least a portion of the calcium-containing particles having adsorbed mercury and hydrochloric acid.

公开(公告)号：US11364481B2

公开(公告)日：2022-06-21

申请号：US15877732

申请日：2018-01-23

Applicant: Mercury Capture Intellectual Property, LLC

Inventor： Christopher L. Poling

IPC: B01J20/34 ,  B01J20/20 ,  C10L9/08 ,  C04B18/06 ,  B01D53/10

Abstract: A system and method for producing a modified coal ash involves collecting a bulk quantity of such coal ash, generally after it has been produced or landfilled, or is otherwise at temperatures closer to ambient, as opposed to power plant operational temperatures. In one possible implementation, the method herein involves removing carbon from the coal ash, such removal occurring by exposing the carbon to indirect heat, that is, externally-applied heat. For coal ashes with higher ash content. This removal is accomplished by subjecting the coal ash stream to heat, in one implementation, ranging between 850° F. and 1200° F., and such heat exposure occurring from about 10 minutes to about 30 minutes. The range of exposure time for the coal ash is determined so as to reduce the LOI from its initial level to a level acceptable for intended re-use or recycling. In one application, the LOI of carbon in the ash is reduced to 3% or less carbon. Upon completion of the range of the exposure time, the coal ash stream is removed from the sublimation heat, thereby forming a modified coal ash.

公开(公告)号：US20210370225A1

公开(公告)日：2021-12-02

申请号：US16967136

申请日：2019-10-12

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Yongchun ZHAO ,  Xiangzheng CUI ,  Junying ZHANG

IPC: B01D53/10 ,  B01J20/28 ,  B01J20/30 ,  B01J20/26

Abstract: The disclosure relates to the field of heavy metal adsorbents, and a heterogeneous agglomeration adsorbent for heavy metal adsorption, a method for preparing the same, and applications are provided. The heterogeneous agglomeration adsorbent includes the following components according to percentage by weight: 0.005% to 0.01% of polyacrylamide, 0.0005% to 0.001% of calcium chloride, 0.001% to 0.01% of coconut oil fatty acid diethanolamide, and a balance is water.

公开(公告)号：US11179673B2

公开(公告)日：2021-11-23

申请号：US15853029

申请日：2017-12-22

Applicant: Midwest Energy Emissions Corp.

Inventor： John H. Pavlish ,  Edwin S. Olson ,  Michael J. Holmes

IPC: B01D53/10 ,  B01D53/64 ,  B01J20/04 ,  B01D53/83 ,  B01J20/02 ,  B01J20/10 ,  B01J20/12 ,  B01J20/20 ,  B01J20/22 ,  B01J20/28 ,  B01J20/34

Abstract: Various embodiments disclosed relate to sorbents for the oxidation and removal of mercury. The present invention includes removing mercury from a mercury-containing gas using a halide-promoted and optionally ammonium-protected sorbent that can include carbon sorbent, non-carbon sorbent, or a combination thereof.

公开(公告)号：US20210129079A1

公开(公告)日：2021-05-06

申请号：US17125641

申请日：2020-12-17

Applicant: Midwest Energy Emissions Corp

Inventor： Edwin S. Olson ,  Michael J. Holmes ,  John H. Pavlish

IPC: B01D53/64 ,  B01D53/10 ,  B01J20/20 ,  B01J20/02 ,  B01J20/04 ,  B01J20/10 ,  B01J20/12 ,  B01J20/22 ,  B01J20/28 ,  B01J20/34

Abstract: A promoted activated carbon sorbent is described that is highly effective for the removal of mercury from flue gas streams. The sorbent comprises a new modified carbon form containing reactive forms of halogen and halides. Optional components may be added to increase reactivity and mercury capacity. These may be added directly with the sorbent, or to the flue gas to enhance sorbent performance and/or mercury capture. Mercury removal efficiencies obtained exceed conventional methods. The sorbent can be regenerated and reused. Sorbent treatment and preparation methods are also described. New methods for in-flight preparation, introduction, and control of the active sorbent into the mercury contaminated gas stream are described.

公开(公告)号：US10994242B2

公开(公告)日：2021-05-04

申请号：US16459241

申请日：2019-07-01

Applicant: Samsung Display Co., Ltd.

Inventor： Yoonho Kang

IPC: B41J2/175 ,  B41J2/165 ,  B01D53/10 ,  H01L51/00 ,  H01L51/56

Abstract: An inkjet printing apparatus includes a first stage on which a substrate is disposed, an ink storage portion including ink and a plurality of pollutant adsorption balls dispersed in the ink, a head portion including a nozzle configured to eject the ink supplied from the ink storage portion to the substrate, and a gas discharging portion disposed on a side of the ink storage portion.

公开(公告)号：US20210016220A1

公开(公告)日：2021-01-21

申请号：US17034283

申请日：2020-09-28

Applicant: Exxonmobil Research and Engineering Company ,  TDA Research, Inc.

Inventor： Jeannine Elizabeth Elliott ,  Robert James Copeland ,  Jeff Lind ,  Daniel P. Leta ,  Patrick P. McCall

IPC: B01D53/04 ,  B01D53/06 ,  B01D53/10

Abstract: A system and method for separating and/or purification of CO2 gas from a CO2 feed stream is described. The system and method include a plurality of fixed sorbent beds, adsorption zones and desorption zones, where the sorbent beds are connected via valve and lines to create a simulated moving bed system, where the sorbent beds move from one adsorption position to another adsorption position, and then into one regeneration position to another regeneration position, and optionally back to an adsorption position. The system and method operate by concentration swing adsorption/desorption and by adsorptive/desorptive displacement.

公开(公告)号：US10828597B2

公开(公告)日：2020-11-10

申请号：US16230222

申请日：2018-12-21

Applicant: ADA Carbon Solutions, LLC

Inventor： Sarah G. McMurray ,  Jacob B. Lowring ,  Brian Leen

IPC: B01D53/02 ,  B01D53/10 ,  B01J20/28 ,  B01J20/20 ,  B01D53/64 ,  B01D53/83

Abstract: Sorbent compositions including sorbent particles of a small particle sized sorbent with increased pneumatic conveyance properties. The sorbent compositions have relatively small median particle size and have a controlled particle size distribution (PSD). Specifically, the sorbent compositions include a relatively small percentage of very fine particles, such as a small percentage of particles having a particle size of not greater than about 5 μm. The sorbent compositions are particularly useful for the treatment of a flue gas stream to remove mercury from the flue gas stream.

公开(公告)号：US20200330919A1

公开(公告)日：2020-10-22

申请号：US16611774

申请日：2018-05-11

Applicant: The Queen's University of Belfast

Inventor： Stuart JAMES ,  Min Ying TSANG ,  John CAHIR ,  David ROONEY

IPC: B01D53/10 ,  B01D15/02 ,  B01D53/02 ,  B01D53/14 ,  B01J20/18 ,  B01J20/22

Abstract: The invention relates to dispersions of porous solids in liquids selected from deep eutectic solvents, liquid oligomers, bulky liquids, liquid polymers, silicone oils, halogenated oils, paraffin oils or triglyceride oils, as well as to their methods of preparation. In embodiments of the invention, the porous solids are metal organic framework materials (MOFs), zeolites, covalent organic frameworks (COFs), porous inorganic materials, Mobil Compositions of Matter (MCMs) or a porous carbon. The invention also relates to the use of porous materials to form dispersions, and to assemblages of such dispersions with a gas or gases. The dispersions can exhibit high gas capacities and selectivities.