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Hydrogen-ammonia dual-fuel engine system using waste heat of exhaust gas to supply hydrogen by catalytic reforming of methanol

A catalytic reforming and engine technology, applied to combustion engines, internal combustion piston engines, charging systems, etc., can solve problems such as low combustion speed, high ignition point of ammonia, incomplete combustion, etc., to improve combustion conditions, reduce heat emissions, The effect of improving thermal efficiency

Active Publication Date: 2022-07-12
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, ammonia also has a high ignition point and a low combustion velocity, and there is a problem of incomplete combustion in internal combustion engines, especially at low speed and low load

Method used

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  • Hydrogen-ammonia dual-fuel engine system using waste heat of exhaust gas to supply hydrogen by catalytic reforming of methanol
  • Hydrogen-ammonia dual-fuel engine system using waste heat of exhaust gas to supply hydrogen by catalytic reforming of methanol

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Embodiment Construction

[0022] In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative efforts.

[0023] It should be noted that in the description of the present invention, the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc. The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not mean that a device or element must have a specific orientation, be construct...

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Abstract

The invention relates to a hydrogen-ammonia dual-fuel engine system utilizing waste heat of waste gas to catalyze reforming methanol to supply hydrogen, comprising a methanol aqueous solution tank, a methanol pump, a methanol flowmeter, a catalytic reformer, a condenser, a filter, a pneumatic booster pump, Hydrogen flowmeter, hydrogen pressure sensor, flame retardant, hydrogen rail, hydrogen nozzle, ammonia fuel engine, electronic control unit ECU, and exhaust gas drive and discharge mechanism; the present invention uses methanol as a hydrogen energy carrier for storage and transportation, and utilizes the engine The exhaust gas waste heat is catalytically reforming methanol to produce hydrogen to realize hydrogen supply; according to the specific working conditions of the engine, it provides real-time, quantitative and constant pressure online hydrogen supply, without the need for additional excess hydrogen storage devices; according to the specific working conditions of the ammonia-fueled engine, the hydrogen supply is adjusted. The injection pressure and injection volume can effectively improve the combustion of the engine under various working conditions and reduce NOx emissions; enrich the combustion mode and supply mode of carbon-free alternative energy of the internal combustion engine, and increase the direction and strategic deployment of energy transformation.

Description

technical field [0001] The invention relates to the technical field of internal combustion engines, in particular to a hydrogen-ammonia dual-fuel engine system utilizing waste heat of exhaust gas to catalyze reforming methanol to supply hydrogen. Background technique [0002] In recent years, the energy crisis and environmental pollution caused by the huge consumption of fossil energy have forced people to seek new and clean alternative energy sources. Due to the carbon-free nature of hydrogen and ammonia, complete combustion will not form any carbon-related pollutants such as CO, CO 2 And soot, etc., gradually attracted people's attention. Among them, hydrogen has a wider combustion limit, higher calorific value per unit mass and diffusion rate, and has always been considered as the most promising fuel in internal combustion engines. However, the low density of hydrogen requires special high pressure or ultra-low temperature storage, and the low ignition energy makes it e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M27/02F02M21/02F02D19/06F02D41/00
CPCF02M27/02F02M21/0218F02M21/023F02M21/0248F02M21/0245F02M21/0239F02D19/0644F02D41/0025F02D41/0027Y02T10/30
Inventor 冯立岩卢耀夏雨曲文静王自鑫张东方源宋湄葭
Owner DALIAN UNIV OF TECH
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