Guangdong Province recently issued the Interim Measures for the Management of Fuel Cell Vehicle Hydrogenation Stations (draft) (hereinafter referred to as the Measures) clearly stated that the construction of hydrogen production and hydrogenation stations in non-chemical parks. The industry believes that this policy will have a positive impact on the hydrogen industry, and the construction of non-chemical park hydrogen production and hydrogenation station in Guangdong is expected to "loosen". The Measures make it clear that all cities should accelerate the construction of hydrogenation stations, focusing on supporting the joint construction of hydrogenation stations and integrated hydrogen production and hydrogenation stations. Among them, the scale of hydrogen production in hydrogen production and hydrogenation station should not exceed 3000 kg / day, the total capacity of hydrogen storage tank should not exceed 3000 kg, and the construction of hydrogen production and hydrogenation station in non-chemical parks is allowed. In foreign countries, the development of hydrogen production station has been for decades. In China, the first concentrated hydrogen production in the chemical industry park, and hydrogen is used as a chemical industrial product. Driven by the development of hydrogen energy and fuel cell vehicle industry, hydrogen began to provide energy for the transportation industry, and put forward new requirements for the production and location of hydrogen. The new application scenarios have spawned the market demand for hydrogen production and hydrogenation integrated stations, and the hydrogen production industry has also ushered in new development opportunities.
In recent years, China's hydrogen energy industry is in the sunrise period of development, and many cities across the country will be hydrogen refueling stations as hydrogen energy transportation infrastructure layout and construction. In March 2016, the National Development and Reform Commission and the National Energy Administration issued the Action Plan for Energy Technology Revolution and Innovation (2016-2030), which shows that the integration of hydrogen production and hydrogenation is the strategic development direction of technological innovation in the field of hydrogen energy and fuel cells. According to the 14th Five-Year Plan for Energy Development in Guangzhou, during the 14th Five-year Plan period, about 50 hydrogenation stations will be built in Guangzhou, and more than 100 hydrogenation stations will be built by 2030. Long tube trailer transportation is the main source of hydrogen supplied by most hydrogenation stations, and hydrogen transportation by long tube trailer will bring certain safety risks, and has the disadvantages of long loading and unloading consumption time, low transportation cost performance, and high proportion of energy waste. With the construction of hydrogenation stations, the disadvantages of relying on long tube trailers to transport hydrogen will become more prominent. Therefore, the integration of hydrogen production and hydrogenation began to attract more and more people's attention.
In addition to avoid the long tube trailer transport, hydrogen hydrogenation station attention, there are two direct reasons: on the one hand, the fuel cell vehicle application policy brought the increasing number of hydrogen cars, terminal vehicles due to the current domestic hydrogen supply conditions is not mature and with hydrogen, but hydrogenation station because the hydrogen price and widespread losses, need to use government subsidies to maintain business, the pair of situation must be solved as soon as possible. Hydrogen hydrogenation station, on the other hand, has an ordinary station does not have the advantages, can realize the station of hydrogen production with hydrogen balance, and can reduce the long tube trailer brings high risk and high cost, but also can cooperate with the surrounding chemical park form industrial chain, finally presents is terminal with hydrogen cost reduction, achieve a win-win situation.
The electrolysis of water hydrogen production, natural gas / methanol reforming hydrogen production, ammonia hydrogen production are the directions of hydrogen production in several stations. The following will introduce and compare these several directions.
The cost of hydrogen production by water electrolysis is mainly the cost of electricity, which consumes about 5 kilowatt hours of electricity per cubic meter of hydrogen production. Although some hydrogen and hydrogenation stations by water will adopt the strategy of hydrogen and light complementarity, they are still inseparable from mains. Domestic thermal power accounts for 70% of the municipal power generation, which means that most of the hydrogen produced is grey hydrogen. This also means that the cost of producing per kilogram of hydrogen will reach about 60 yuan. The investment includes construction cost, hydrogen production equipment (electrolysis device), hydrogen purification, compression equipment (compressor), hydrogen storage equipment (hydrogen storage bottle) and hydrogenation equipment (hydrogenation and cooling system) and other aspects. The cost composition is as follows:
Hydrogen production from natural gas can be used as an excellent choice in the transition process from gray hydrogen to blue hydrogen and green hydrogen, but its limitations are great. Since gas on land has to be transported through pipelines, it will be expensive to build unless existing gas filling stations (mainly in the hands of gas companies) are converted. On July 28,2021, the Nanzhuang hydrogen production, hydrogenation and gas filling integrated station invested by an energy company in Foshan started trial operation, which is the first natural gas hydrogen production and hydrogenation integrated station in the station in China. In addition, China's natural gas mainly depends on imports, and the country gives a large number of subsidies, so its price has great upward pressure. In the first half of 2022, the landed price of LNG imports has almost double the same period in 2021.
Liquid ammonia and liquid hydrogen have similar problems, which require pressure and low temperature storage, but their storage temperature is higher than that of liquid hydrogen. Its ability to provide technical support for the integrated hydrogen production and hydrogenation station may not yet be mature. On August 19,2022, China's first "ammonia on-site hydrogen production and hydrogenation integrated station" was officially launched in Changle, Fuzhou. Liquid ammonia is toxic, while ammonia gas has a strong pungent odor, which is harmful to human body. When the concentration of ammonia in the air reaches 0.5-0.6% (calculated by volume), people who stay in it for half an hour can be poisoned, and when the concentration exceeds 0.6-1%, it may cause death accidents. On August 31,2013, a liquid ammonia leak occurred in Shanghai, killing 15 people and injuring 25 others.
As a common hydrogen production route for large chemical industry, although methanol is a dangerous chemical product, it is less dangerous than natural gas and liquid ammonia, the process of hydrogen production is safer, and the use of liquid fuel can solve the problems of the production, storage and transportation of hydrogen at one stroke. Methanol has wide sources and low cost, its hydrogen storage weight density up to 12.5wt%, normal temperature and pressure hydrogen storage, which is better than liquefaction, high pressure and other hydrogen storage technologies. The methanol water for hydrogen production + hydrogen fuel cell emission is very low, the product is only water and a small amount of carbon dioxide, to achieve the effect of energy saving and emission reduction. The technology has a wide adaptability, and the hydrogen produced by the equipment can meet the demand of a variety of equipment for gas sources, such as high temperature fuel cell, low temperature fuel cell, hydrogen internal combustion engine, etc. As the best liquid carrier of hydrogen, methanol has high hydrogen content and low storage difficulty. Online hydrogen production can significantly reduce the cost of hydrogen and provide stable and continuous hydrogen supply for hydrogen power generation and hydrogen vehicles. Recently, the first set of mass production type (200kg / day) methanol hydrogen production-hydrogenation integrated station was completed and put into operation in Chengyang District, Qingdao city. The concept of distributed hydrogen source extended by this method has also emerged in the market. Guangdong Nengchuang Technology Co., Ltd., as a leading methanol online hydrogen production equipment research and development and production enterprise, has successfully applied methanol reforming online equipment in hydrogen heavy truck logistics vehicles. The application of this set of technology proves that methanol online hydrogen production equipment can provide strong technical support in the field of on-mounted methanol online hydrogen production or the field of distributed hydrogen source of hydrogenation station. At the same time, the cost of hydrogen produced through methanol reforming online hydrogen production technology is within the range of 15-25 yuan, which is far less than the purchase price of hydrogen in hydrogen storage station, to provide low and efficient hydrogen source for hydrogen vehicles, reduce operating costs and promote the development of hydrogen energy industry.
Guangdong Nengchuang Technology Co., Ltd. is a group company established in Tianhe District in 2018 integrating research and development, production, sales, operation and maintenance in response to the dual strategic spirit of "vigorously developing new energy Manufacturing Equipment industry" and "Energy Technology Revolution, Revolution and Innovation Action Plan (2016-2030)". Guangdong can create technology co., LTD., mainly committed to hydrogen technology research, relying on the team for years of technical accumulation and experience, the "methanol reforming hydrogen production technology" and "fuel cell power generation technology" integration, cope with different scenarios, research and development of various hydrogen production equipment and hydrogen power generation equipment, break through the hydrogen "system, storage, transport, charge" safety technology bottleneck. At present, the company has reached strategic cooperation with Sinopec, FAW Jiefang Co., LTD., Guangzhou Branch of China Mobile Group, Jiangmen Branch of China Telecom Group, Chuandao Town, Taishan City, Jiangmen City, etc., and the pilot business cooperation has been applied. Developed by Guangdong can create science and technology of CW-HG (Hydrogen Generator) series of hydrogen production machine is the principle of methanol water reforming hydrogen production hydrogen, the international advanced membrane purification technology, high thermal stability catalytic technology, aluminum alloy casting technology coupling, the new thermal stability of catalyst optimal use temperature and membrane separation temperature, coupling temperature, solve the copper zinc based catalyst reaction temperature and membrane purification temperature leads to a series of problems. Through the high heat transfer rate of aluminum alloy, the combustion heat is supplied to the reactor in time to provide the reaction heat source. Highly efficiently and gently convert methanol water raw material into hydrogen for hydrogen equipment. The unique thermal standby mode can achieve a minute of open mechanism hydrogen, to achieve the real sense of open and use.