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Skid-mounted type integration device and method for preparing hydrogen from natural gas and integrating heat-electricity-cold triple co-generation with proton exchange membrane fuel cell

A proton exchange membrane and fuel cell technology, which is used in fuel cell heat exchange, fuel cells, fuel cell additives, etc., can solve the need for combined heat, power and cooling in less buildings, and is not suitable for building energy load fluctuations, heat and electricity cooling. Issues such as load matching and mobility

Active Publication Date: 2017-11-17
CNOOC GAS & POWER GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, the combined energy supply systems disclosed above are seldom suitable for the combined heat, power and cooling needs of buildings, or are not suitable for the requirements of building energy load fluctuations, heating, power and cooling load matching, and mobile convenience.

Method used

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  • Skid-mounted type integration device and method for preparing hydrogen from natural gas and integrating heat-electricity-cold triple co-generation with proton exchange membrane fuel cell
  • Skid-mounted type integration device and method for preparing hydrogen from natural gas and integrating heat-electricity-cold triple co-generation with proton exchange membrane fuel cell
  • Skid-mounted type integration device and method for preparing hydrogen from natural gas and integrating heat-electricity-cold triple co-generation with proton exchange membrane fuel cell

Examples

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Effect test

Embodiment 1

[0084] This embodiment is a schematic diagram of the process flow of a skid-mounted integrated method for producing hydrogen from natural gas and integrating thermoelectric cooling with proton exchange membrane fuel cells, in which 1: the first heat exchanger (E1); 2: the second heat exchange 3: the third heat exchanger (E3); 4: the fourth heat exchanger (E4); 5: the fifth heat exchanger (E5); 6: the sixth heat exchanger (E6);

[0085] The schematic diagram of this process is shown in figure 1 , the raw material gas is city gas or natural gas after desulfurization, the main component is CH 4 , containing a small amount of C 2 + Hydrocarbons. In this case, the typical natural gas source is selected as raw material gas. The components and main process parameters are shown in Table 1:

[0086] Table 1 Composition of feed gas

[0087]

[0088] The composition and main process parameters of the air are shown in Table 2:

[0089] Table 2 Composition of Air

[0090] ...

Embodiment 2

[0111] This example is a skid-mounted integrated device for producing hydrogen from natural gas and integrating heat, electricity, and cooling with a proton exchange membrane fuel cell. The schematic diagram of the result is as follows figure 2 shown, where:

[0112] C1: Feed gas compressor; R1: Methane steam reforming reactor; R2: High and low temperature CO shift reactor; R3: CO selective oxidation or CO selective methanation reactor; F1: Combustion heater; E1: The first heat exchanger; E2: the second heat exchanger; E3: the third heat exchanger; E4: the fourth heat exchanger; E5: the fifth heat exchanger; E6: the sixth heat exchanger; P1: proton exchange Membrane fuel cell stack; Q1: DC-AC converter; X1: hot water lithium bromide absorption refrigeration unit; T1: hot water storage tank; 101: feed gas (city gas or natural gas after desulfurization); 102: air; 103 : water vapor; 104: battery exhaust; 105: combustion exhaust; 201: system cooling water; 202: refrigerant wate...

Embodiment 3

[0132] This embodiment is another skid-mounted integrated device for producing hydrogen from natural gas and integrating thermoelectricity and cooling with a proton exchange membrane fuel cell. The structural diagram is as follows image 3 shown, where:

[0133]C1: Feed gas compressor; R1: Methane steam reforming reactor with gas channel jacket layer; R2: high and low temperature CO shift reactor with gas channel jacket layer; R3: gas channel clamp Jacketed CO selective oxidation or CO selective methanation reactor; F1: fired heater; E1: first heat exchanger; E2: second heat exchanger; E3: third heat exchanger; P1: proton exchange Membrane fuel cell stack; Q1: DC-AC converter; X1: hot water lithium bromide absorption refrigeration unit; T1: hot water storage tank; 201: feed gas (city gas or natural gas after desulfurization); 202: air; 203 : water vapor; 101: battery exhaust; 102: combustion exhaust; 204: system cooling water; 205: refrigerant water input; 206: stack cooling ...

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Abstract

The invention discloses skid-mounted type integration device and method for preparing hydrogen from natural gas and integrating heat-electricity-cold triple co-generation with a proton exchange membrane fuel cell. According to the skid-mounted type integration method, the natural gas or urban fuel gas is used as a raw material; firstly, a mixed gas of CO, H2 and CO2 is prepared by utilizing reformation; afterwards, the CO is removed to be less than 10ppm through high temperature conversion, low temperature conversion and selective oxidation or selective methanation processes; afterwards, power is supplied outwards by using the mixed gas as the proton exchange membrane fuel cell; the heat in the processes is subjected to gradient utilization; a raw gas is heated in a gradient manner; cooling water is heated in the gradient manner; hot water is enabled to pass through a hot water lithium bromide absorption type refrigeration device, and then supplies cold outwards; the utilized hot water is then used for supplying domestic hot water. The skid-mounted type integration device and the skid-mounted type integration method which are provided by the invention can be used for the distributed heat-electricity-cold triple co-generation of medium and small buildings such as a hospital, a supermarket, a school, an office building and a residence, can be also used as an uninterrupted power supply (UPS), and can be used as a device for treating boiled off gas (BOG) in an LNG (Liquefied Natural Gas) receiving station to carry out the co-generation of the cold, the heat and the electricity in the station.

Description

technical field [0001] The invention relates to a skid-mounted integrated device and method for producing hydrogen from natural gas and integrated thermoelectric cooling triple supply with a proton exchange membrane fuel cell, which belongs to the distributed power generation and combined thermoelectric cooling triple supply of fuel cells using city gas or natural gas as raw materials field. Background technique [0002] Hydrogen energy has the advantages of high calorific value and no pollution. It is a superior, clean and efficient new energy source. The current hydrogen production technologies mainly include natural gas hydrogen production, nuclear energy hydrogen production, solar hydrogen production, biomass hydrogen production and other methods. 90% of the hydrogen in the world is realized with natural gas as raw material. Hydrogen is produced by steam reforming of natural gas or Partial oxidation of hydrogen to obtain hydrogen resources. The hydrogen fuel cell techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04007H01M8/04029
CPCH01M8/04007H01M8/04029Y02P70/50Y02E60/50
Inventor 宋鹏飞周丹侯海龙侯博徐立昊
Owner CNOOC GAS & POWER GRP
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