【Ten Years of Rapid Development in Chemical Engineering Equipment】Marine 3,400-cubic-meter stainless steel LNG (ammonia-methanol ready) fuel tanks from 2012 to 2023
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Looking at the development of chemical engineering technology over the past decade, we admire the prosperity and strength of modern China. This is just a preliminary contribution; more participation from everyone will make things even more interesting. With you here, HaiChuan becomes even better. [A decade of progress in chemical engineering equipment] – continuous updates and summaries available; feel free to join the discussions at https://bbs.hcbbs.com/thread-3576046-1-1.html. Prevention first, life above all. ----------------------------------------- Recently, the 3,400-cubic-meter stainless steel LNG (with capacity for ammonia-methanol as well) fuel tank built by Nantong CIMC Pacific Offshore Engineering Co., Ltd. (hereinafter referred to as “CIMC Pacific Offshore”) for TGE Marine was successfully shipped from the company’s eastern dockyard. This tank is the first of the 8 sets of 3,400-cubic-meter stainless steel tanks, marking a significant breakthrough for CIMC Pacific Offshore in the field of large-scale stainless steel C-type tanks. The series consists of 8 ship sets, each set including one double-earled tank; two stainless steel enclosed compartments are installed on the top of the tank. After delivery, they will be installed as a whole on Höegh Autolines’ 9100-vehicle dual-fuel vehicle carrier (PCTC) built by CSIC Heavy Industry. The ship is classified by DNV, the Norwegian classification society; it is designed to use LNG as fuel, but it is also equipped to use ammonia and methanol as fuels. It is one of the first car carriers prepared for operation with carbon-neutral ammonia fuel, and it will also become the largest and most environmentally friendly car carrier in the world. Delivery of the new ship is expected to take place in the second half of 2024.
At the initial stage of the project, CIMC Pacific Offshore, through the meticulous design and calculations carried out by its project design team and by maintaining close communication with classification societies and clients, overcame various design challenges. It used enhanced 304L stainless steel to ensure the appropriate performance of the liquid tanks, and added additional structural elements in the ring areas to meet the special requirements of the saddle shape, thereby successfully obtaining approval from the classification society. Welding deformation is the most challenging issue encountered in the fabrication of stainless steel structures. The on-site fabrication team at CIMC Pacific Offshore Engineering addressed this problem one by one by strictly following the welding deformation control procedures established in advance, and by leveraging their extensive experience in on-site assembly and welding accumulated over the years; as a result, the overall precision of the liquid tank met the customer’s requirements. With the high attention of the company’s leadership, and in regard to the construction of the stainless steel liquid tank, the project team carried out preliminary planning, conducted thorough internal discussions, and organized external site visits as part of its efforts. As a result, guidelines for tank construction, procedures for material protection, welding techniques, control of welding deformation, and methods for transporting and lifting very long tanks were established, all aimed at ensuring the smooth completion of the project. To meet the requirements of construction conditions, the Structural Manufacturing Department implemented rigid, permanent isolation measures in the production workshops and carried out floor modifications to protect stainless steel materials from contamination during various production stages, earning high recognition from clients, shipyards, and shipowners.
【Ten Years of Rapid Development in Chemical Equipment】Stunning photos from 2010 to 2023! Global’s largest propane-propylene separation tower lifted as a whole https://bbs.hcbbs.com/thread-5493564-1-1.html (Source: Haichuan Chemical Industry Forum)
This is pretty good actually, haha, it’s great!
Traditional LNG carrier fuel tanks are made of 9-nickel steel. To meet the requirement for these PCTC vessel fuel tanks to be capable of switching from LNG to various cleaner fuels such as ammonia and methanol, CIMC Pacific Offshore Engineering overcame numerous design challenges; for the first time, it used enhanced 304L stainless steel in such fuel tanks. Additionally, extra structural designs were added to the ring areas to meet the special requirements related to the saddle shape, enabling the tanks to pass the inspections conducted by DNV.