Abstract
Hydrogen energy is becoming more and more blooming because of its diversified sources, eco-friendly and green, easy storage and transportation, high-efficient utilization, etc. The use of hydrogen as an energy carrier is expected to grow over the next decades. Hydrogen, like electricity, is a secondary energy. Hydrogen production is the foundation for all kinds of applications. Based on the resources situation in China, potential of hydrogen production is analysed. China has a large potential of hydrogen production from coal, which is about 2.438 billion tons. Potential of hydrogen production from natural gas is less than that from coal, which is about 501 million tons. According to the average consumption of methanol per year, potential of hydrogen production from methanol is about 690, 000 tons per year. Potential of hydrogen production from industrial gas (coking, petrochemical and chlor-alkali industries) is about 866, 400 tons per year. Potential of hydrogen production from abandoned renewable energy power is about 1798.2 million tons per year. Distribution of resources in China differs among provinces. The deployment of hydrogen industry should pay attention to local hydrogen production potential. A green hydrogen production method, such as water electrolysis by renewable energy power, is a promising and environmental friendly way.
Highlights
Hydrogen energy is becoming more and more blooming because of its diversified sources, eco-friendly and green, easy storage and transportation, high-efficient utilization, etc
Based on the resources situation, hydrogen production by coal gasification, steam methane reforming, water electrolysis and purification of industrial gas is analysed in this paper
Assuming that all existing Propane dehydrogenation (PDH) units are put into operation at full load, efficiency of PSA is 92% and 10% of gas produced by PDH is used, the potential of hydrogen production from PHD industry is about 225,000 tons per year
Summary
Hydrogen energy is becoming more and more blooming because of its diversified sources, eco-friendly and green, easy storage and transportation, high-efficient utilization, etc. Many countries, especially developed countries, have included the deployment of hydrogen energy as a part of their national energy strategy [1, 2]. China has clearly stipulated in many important documents to vigorously develop the hydrogen energy industry. There are 25 cities that have deployed hydrogen energy industry in China. Like electricity, is a secondary energy, which is not available in nature. It can be produced by using diverse resources, including fossil fuels (such as coal, natural gas and methanol) and renewable energy (such as biomass, solar, wind and hydro-electric power). Based on the resources situation, hydrogen production by coal gasification, steam methane reforming, water electrolysis and purification of industrial gas is analysed in this paper. Considering hydrogen energy demand, suggestions for options of hydrogen production methods are proposed
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