According to a report by Japan Economic News on June 21, Japan International Petroleum Development Emperor Shi (referred to as International Emperor Shi) is planning to use carbon dioxide emitted by itself as a raw material for city gas to carry out reuse business. The raw materials will be produced in gas fields in Niigata Prefecture from August, and city gas that can be used by 50,000 households will be produced by 2030. Carbon dioxide recycling technology is attracting worldwide attention. The international emperor stone plan to enhance the competitiveness of technologies related to climate change, and plans to promote these technologies to overseas gas fields.
This is the first commercial operation in Japan that uses carbon dioxide as a raw material for city gas. "ESG (Environmental, Social, and Corporate Governance)", which requires companies to pay attention to environmental issues, is becoming the trend of the times. At the G20 Energy and Environment Ministers' Meeting held on June 16, the parties reached a consensus on cooperating in the reuse of carbon dioxide. International Dishi will carry out commercial operation, which may promote the gathering of related industries such as complete equipment.
Teijin International will install production facilities in Japan's largest gas field in Nagaoka City, Niigata Prefecture, so that carbon dioxide and hydrogen will chemically react to produce methane as a raw material for city gas. Started production in August, first with an annual output of about 50 tons of methane, mixed with city gas and supplied through existing pipelines. It is planned to be extended to overseas gas fields where the company has exploitation rights by 2030, and the annual output will be increased to 350,000 tons. Including overseas, 1 million tons of carbon dioxide is reused every year.
The initial production cost is expected to be ten times that of ordinary city gas. International Emperor Shi hopes that through mass production effects and related equipment price reduction, it will strive to reduce it to the level of ordinary city gas after 2030. With methane produced in this way, carbon dioxide emissions can be regarded as zero. It can also include the “carbon pricing†mechanism under discussion in the world to promote the reduction of emissions through the pricing of greenhouse gases, so as to avoid increasing costs due to carbon dioxide emissions.
In the use of carbon dioxide as a raw material, complete equipment manufacturers have also launched actions from the outside. International Dishi can use the carbon dioxide produced by its own gas field for commercial operation, and this advantage will be fully exerted. The company has operations in more than 20 countries and has strengthened its relationship with resource countries by combining with the provision of technology in the negotiation of mining rights. In addition, the company will switch to electricity generated from renewable energy to produce hydrogen after 2021, reducing carbon dioxide emissions overall.
In terms of using carbon dioxide as a raw material, large European and American companies have taken the lead. In the oil sands development activities in Canada, Royal Anglo-Dutch Shell has carried out the “carbon capture and storage (CCS)†business of burying carbon dioxide underground, and has already stored about 4 million tons. British Petroleum (BP) and Total of France plan to build natural gas power plants in the northeast of the UK, which can carry out a one-stop operation from the recovery of carbon dioxide to storage and utilization.
In Europe and America, companies outside the energy industry have also begun to take action. Audi in Germany began to use the existing gas pipeline to supply synthetic methane. Uniper, a large German power company, is also cooperating with countries such as France and Italy to carry out the same business.
Hitachi Shipbuilding in Japan has developed equipment for producing methane by reacting carbon dioxide generated by thermal power generation with hydrogen, and is continuing to conduct verification tests. It is planned to put methane and gas mixed for commercial operation as a fuel for power generation in 2022. The Japanese government mentioned in the energy basic plan decided by the cabinet meeting in 2018 that the use of carbon dioxide as a means of "decarbonization of the power system", etc., the government is also vigorously pushing related technologies into practical use.
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