Osaka Gas Co., Ltd. has been receiving LNG from Brunei and Indonesia at the Senboku Works I and II since 1972 and 1977, respectively.
As well known LNG has cold energy about 200kcal/kg LNG, and power generation plants which utilize LNG cold are being highlighted as a process in many LNG receiving terminals to reduce their operation cost and to save energy.
To realize these plants it is mentioned that the most important problem is how we can design the economical heat exchanger.
For that purpose we have developed new types of LNG vaporizer named OG-TRI-EX. It offers a number of advantages in terms of economy construction and operation compared with conventional LNG vaporizer-open rack type vaporizer.
Using these technologies two commercial power generation plants by LNG cold were constructed in 1979 and 1982 at Senboku Works II. Since then, have been in operation without any trouble and contribute to the reduction in power cost in the Works.
