China Drying Technology Co., Ltd. has successfully developed a new catalytic cracking naphtha hydrogenation catalyst developed by the China Petroleum and Petrochemical Research Institute, and successfully used the company's 120,000 tons/year catalytic cracking naphtha hydrogenation unit. The results of one month of industrial application show that the device operates stably, the catalyst fully meets the requirements of the industrial device, and for the first time, the industrialization of catalytic cracking naphtha hydrogenation is realized.
Up to now, the two-stage hydrogenation unit has run smoothly. The hydrogenation product bromine price is less than 0.5 gram bromine/100 gram oil, and the sulfur content is less than 1.0×10-6, which is in line with the design specifications of the equipment and fully meets the requirements for aromatic hydrocarbon extraction. This shows that CNPC has fully mastered the catalytic cracking naphtha hydrogenation technology and paved the way for the hydrogenation and utilization of catalytic cracking naphtha in China.
In April of this year, Shenyang Waxing established the first catalytic cracking naphtha hydrogenation unit in China. After that, both parties carried out catalyst loading and two-stage catalyst reduction and sulfidation treatment. On June 29, industrial equipment was put into operation and the drive was successful once.
It is understood that as early as August 2010, researchers from the Petrochemical Research Institute visited Shenyang several times and conducted technical exchanges on the feasibility of extracting aromatics from hydrogenation of 120,000 tons/year catalytic cracking naphtha in Shenyang wax. According to the composition of the raw materials provided by the manufacturer, the researchers proposed a two-stage hydrogenation program using palladium and cobalt molybdenum catalysts to remove diene, monoene and sulfur, respectively. The program has been highly recognized by manufacturers. Since then, researchers from the China Petroleum and Petrochemical Research Institute have further improved the two-stage hydrogenation scheme for cracked naphtha through systematic analysis of 3 kg of catalytic cracking naphtha provided by Shenyang Waxing, and at the same time, through repeated communication and exchanges between the two sides, at the end of the year, The Petrochemical Institute proposed two stages of hydrogenation catalysts and process technologies. Shenyang Waxification entrusted relevant units with the design of two hydrogenation units.
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AGV Solution For Mobile Racking, in simple terms, are movable shelving that can greatly improve space utilization, and a set of shelves only requires one channel to fix the tray shelves, serving only the two rows of shelves on both sides of the channel. So, within the same space, its storage capacity and efficiency are much higher than ordinary shelves. Mobile racking can actually be divided into light to medium mobile racking and heavy mobile shelving. They are as follows: What are light and medium-sized mobile shelving? Light and medium-sized mobile racking, also known as dense shelves, have evolved from light and medium-sized laminated shelves, requiring only a passage of about 1M. It can be said that light and medium-sized mobile shelves have the highest space utilization rate, and can also be divided into two types of mobile racking: manual and electric. Furthermore, the contact surfaces between each column of the light and medium-sized mobile shelving is equipped with cushioning, and the magnetic sealing strip is also equipped with a dustproof plate at the top and a rat proof device at the bottom. Each column is also equipped with a safety limit braking device and an anti tipping device, and a lock is arranged on the side for overall locking. The transmission mechanism is processed through precision machining and uses precision bearings, making the transmission flexible and stable. The spacing between layers can be freely adjusted according to needs. What is a heavy-duty mobile shelf? Heavy mobile shelves are generally evolved from heavy pallet shelves, which belong to an exposed structure, and each two rows of shelves are placed on the base. There are also walking wheels on the base, which can run along the track. In its chassis, there are also motors and reducers, alarm, and sensing devices installed. The storage system for heavy-duty mobile shelves only requires 1-2 channels, which has extremely high space utilization. Here, Hagrid also points out that heavy-duty mobile shelves must be electric, and goods are accessed by forklifts with zero support. The channel is usually about 3m, which can improve the utilization rate of the ground by about 80% compared to ordinary shelves.
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