-
公开(公告)号：US20230193908A1
公开(公告)日：2023-06-22
申请号：US17926334
申请日：2021-05-26
发明人： Lino Giovanni PORRO , Pieter VIDTS , Nils D'HOKER
摘要： The present disclosure provides a plant comprising an ammonia-producing unit and a urea-producing unit. The urea-producing unit comprises a gas compressor, a steam turbine fluidly connected to the ammonia-producing unit for receiving steam produced by the ammonia-producing unit, and connected to the gas compressor for providing power to the gas compressor, and an electric motor, wherein the electric motor is connected to the gas compressor and configured to provide power to the gas compressor. The present disclosure also provides a method for operating an ammonia and urea plant, and a method to revamp an ammonia and urea plant.
-
公开(公告)号：US11578009B2
公开(公告)日：2023-02-14
申请号：US17053330
申请日：2019-05-09
发明人： Ruud Van Belzen , Filip Colpaert
IPC分类号： C05C9/00 , C05G5/30 , C05G3/30 , C05G3/20 , C05G3/90 , C05D1/00 , C05D9/00 , C05G1/00 , C09K15/02 , C05D5/00 , A23K20/24 , A23K20/26 , A23K40/30 , A23K20/105
摘要： The invention relates to a particulate urea-based blend composition comprising a urea-based compound in particulate form and one or more components in particulate form, selected from the group of nitrates, phosphates, sulphates and chlorides, and a urease inhibitor of the type phosphoric triamide, and a magnesium sulphate, wherein the urea-based blend composition is further characterized in that it comprises an alkaline or alkaline-forming compound, selected from the group of calcium oxide, zinc oxide, magnesium oxide, calcium carbonate, and mixtures thereof. The composition according to the invention has improved properties for reducing ammonia loss by urease activity in the soil and is in particular suitable as a fertilizer. The invention further relates to a method for the manufacture of said urea-based blend composition, as well as to a composition of kit of parts comprising an amount of a) magnesium sulphate; b) a urease inhibitor of the type phosphoric triamide, preferably N-(n-butyl) thiophosphoric triamide (nBTPT); c) an alkaline or alkaline-forming compound, selected from the group of calcium oxide, zinc oxide, magnesium oxide, calcium carbonate, and mixtures thereof, and d) optionally, one or more anti-caking and/or moisture-repellent and/or anti-dust compounds.
-
13.发明授权公开(公告)号：US11572318B2
公开(公告)日：2023-02-07
申请号：US17209483
申请日：2021-03-23
发明人： Francois Ledoux , Filip Colpaert
摘要： This invention relates to a method for the manufacture of a homogeneous, solid, particulate, urea-based material comprising elemental sulphur. The invention further relates to a homogeneous, solid, particulate urea-based material comprising small elemental sulphur phases in a urea-based base material and formed by an accretion process. The product is in particular suitable as a fertilizer.
-
公开(公告)号：US20220388919A1
公开(公告)日：2022-12-08
申请号：US17775366
申请日：2020-11-13
摘要： The invention relates to a solid, particulate, urea-based blend composition comprising a urea-based compound in particulate form, a component comprising an ammonium source in particulate form, a urease inhibitor of the type phosphoric triamide, an alkaline or alkaline-forming inorganic or organic compound that is able to interact with the component comprising an ammonium source in particulate form, selected from the group consisting of metal oxides, metal carbamates, metal hydroxides, metal acetates and any mixtures thereof, or from the group of organic bases consisting of ammonia, amines, amides, adenines, amidines, guanidines, anilines, carbamates, thiazoles, triazoles, pyridines; imidazoles, benzimidazoles, histidines, phosphazenes, and any mixture thereof, wherein the urea-based blend composition further comprises a cation source, different from the alkaline or alkaline-forming inorganic or organic compound, comprising a cation selected from the group consisting of Fe2+, Fe3+, Mn2+, Zn2+, Cu+, Cu2+, Ni2+, Ag+, Pt2+, Ru2+, Co3+ and Cr3+.
-
公开(公告)号：US11485639B2
公开(公告)日：2022-11-01
申请号：US16956181
申请日：2018-12-19
发明人： Kjetil Bakli , Kevin Dring , Øystein Nirisen , Marcel Delhaye , André De Smet
摘要： Catalyst support systems for ammonia oxidation burners comprising a top flange and an inner wall. The top flange comprises a planar section, a rounded outer edge, and a rounded inner edge, the rounded outer edge and the rounded inner edge being separated by the planar section. The inner wall comprises a carrier plate, a gauze shelf, and a bottom plate shelf, the gauze shelf and the bottom plate shelf being attached to the carrier plate. The carrier plate is attached to the top flange by means of the rounded inner edge.
-
公开(公告)号：US20220192100A1
公开(公告)日：2022-06-23
申请号：US17442243
申请日：2020-06-08
发明人： Idaly ALI , Robin YEO , Muhammad IZUDDIN , Navin TWARAKAVI
摘要： A method of determining health of a plant which method includes displaying, on a screen of an electronic display of a mobile computing device, a digital leaf colour chart with colours ranging from yellow green to dark green; displaying on the screen next to the digital leaf colour chart a white area on which a leaf of the plant is to be placed; receiving input to the mobile computing device from a user about which colour of the digital leaf colour chart that best matches the leaf placed on the white area; and the mobile computing device determining the plant health based on the received input.
-
公开(公告)号：US11167902B2
公开(公告)日：2021-11-09
申请号：US17029738
申请日：2020-09-23
摘要： The application relates to a pouch assembly (100) containing a liquid being an aqueous urea solution for use in a selective catalytic reduction system for treating the exhaust gases of an internal combustion engine of a vehicle and for transferring the liquid to a liquid tank of the vehicle from the outside of the liquid tank, the pouch assembly (100) comprising a flexible pouch (1) and a spout (2) attached thereto having a base (21) extending axially through an opening (111) provided in a wall of the pouch (1) and being attached to the opening (111), a top end (22) being configured for insertion in the inside passage of the filling neck (3) of the liquid tank during the filling of the liquid tank, and a body (23) that extends between the base (21) and the top end (22) of the spout (2), the body (23) having an elongated shape, and the body (23) at least partially extending in the inside passage of the filling neck (3) of the liquid tank during the filling of the liquid tank, the base (21), the top end (22) and the body (23) having an elongated axial through-passage (211) to serve as a discharge passage for the liquid. The application relates furthermore to a system comprising such a pouch assembly (100) and a liquid tank having a filling neck (3) allowing insertion of the spout (2) for filling the liquid tank.
-
公开(公告)号：US20210300759A1
公开(公告)日：2021-09-30
申请号：US17264892
申请日：2019-08-14
发明人： Maximilian WARNER
摘要： A novel concept for a high energy and material efficient nitric acid production process and system is provided, wherein the nitric acid production process and system, particularly integrated with an ammonia production process and system, is configured to recover a high amount of energy out of the ammonia that it is consuming, particularly in the form of electricity, while maintaining a high nitric acid recovery in the conversion of ammonia to nitric acid. The energy recovery and electricity generation process comprises pressurizing a liquid gas, such as air, oxygen and/or N2, subsequently evaporating and heating the pressurized liquid gas, particularly using low grade waste heat generated in the production of nitric acid and/or ammonia, and subsequently expanding the evaporated pressurized liquid gas over a turbine. In particular, the generated electricity is at least partially used to power an electrolyzer to generate the hydrogen needed for the production of ammonia. The novel concepts set out in the present application are particularly useful in the production of nitric acid based on renewable energy sources.
-
公开(公告)号：US11062481B2
公开(公告)日：2021-07-13
申请号：US16472992
申请日：2017-12-27
发明人： Stefan Reusch
摘要： The invention relates to a handheld device and method for determining a status of one or more plants. The device includes a digital color camera arranged for obtaining a color image of plants within a field of view, a light source arranged for providing broadband illumination to the plants within the field of view, and a processing unit arranged for controlling the camera and the light source for obtaining a first image of the plants while the light source illuminates the plants with broadband illumination, and obtaining a second image of the plants while the light source does not illuminate the plants.
-
公开(公告)号：US20210187471A1
公开(公告)日：2021-06-24
申请号：US17055501
申请日：2019-05-16
IPC分类号： B01J19/24 , C07C273/16 , C07C273/04 , B01J19/00
摘要： A stripper for stripping a urea/carbamate mixture. The stripper comprises a shell and a plurality of tubes disposed within the shell. A shell-side space is provided between the tubes and the shell. A first heating fluid inlet, a second heating fluid inlet, and a heating fluid outlet are in fluid connection with the shell-side space. The second heating fluid inlet is disposed between the first heating fluid inlet and the heating fluid outlet. Related uses, systems, and methods are provided as well.
-
-
-
-
-
-
-
-
-
搜索结果
186 条记录 (耗时 0.027 秒)
