LNG as a Feedstock for City Gas

Abstract

The basic mission of city gas industry is to supply gas stably and safely.At the same time, they, as an energy supply industry, are expected to contribute to the national energy policy.The main themes of the energy policy are to promote energy conservation and to expand the introduction of alternative energies to oil.City gas industry responds to the policy by increasing the use of LNG.To promote the wide use of LNG, the city gas industry is active in creating new demand, such as cooling by city gas, whose main feedstock is LNG, and utilizing LNG in the field of industry. Replacing as much electricity with gas for air conditioning demand in summer, “cooling by gas”will improve the operation rate of facilities in the field of city gas industry, and as for the electric industry, it will reduce the capacity of facilities at the peak in summer.Today, the heat energy in the industrial heat field is supplied by oil-based feedstocks.However, using LNG in the field of industry will help expand the demand of non-oil based energy.At present, there are249gas undertakings in Japan.Gas supplied by them is grouped into14combustion types, which causes poor service and safety levels for the customers.Therefore, gas undertakings are working to reduce the groups to the minimum.Among them LNG type gas group is considered to be one of the best from an economic and energy efficiency stand point.