Hot tests of the gas dehydration and purification unit of plant line 1 begin at Amur GPP

Commissioning operations with the process media with achievement of the design parameters and quality indicators of the process started at the first unit for dehydration and removal of impurities from the feed gas of the Amur Gas Processing Plant. In preparation for this work, the equipment underwent additional tightness and strength tests. A large number of loop and functional tests have also been performed.
Gazprom Pererabotka Blagoveshchensk professionals participate in commissioning at the first unit for dehydration and removal of impurities from the feed gas

Gazprom Pererabotka Blagoveshchensk professionals participate in commissioning at the first unit for dehydration and removal of impurities from the feed gas


At the moment, the pressure is being ramped up in the unit loops, and the system is being stabilized. At the next stage, the professionals will consistently carry out the cycles of adsorption and purification of gas to remove impurities, as well as the process of regeneration (recovery) of adsorbent.

Gas heated with steam to a temperature of +15...+25 will pass through the adsorbers filled with zeolite. This zeolite will provide purification from impurities, as well as dehydration of the feed gas and removal of methanol with a dew point of up to minus 110 degrees Celsius. This will eliminate the ingress and freezing of moisture on the internal surfaces of the low-temperature gas separation equipment during the next stage in the process chain.
Gas dehydration and purification unit of the first process line of the Amur Gas Processing Plant

Gas dehydration and purification unit of the first process line of the Amur Gas Processing Plant


Total weight of zeolite for all units is more than 240 tons. At the end of the dehydration cycle, the gas enters the impurity removal unit, and the unit itself switches to the regeneration mode for cleaning and restoring the adsorbent. During these procedures, the zeolite is completely restored and ready for the next cycle of adsorption. The resulting dry gas will be sent to the unit for separation of ethane, NGL and nitrogen-helium mixture.
View of the construction site of the Amur Gas Processing Plant

View of the construction site of the Amur Gas Processing Plant


Adsorption dehydration and purification unit at the Amur Gas Processing Plant is designed to prepare the feed gas for low-temperature separation. Moisture, methanol and other impurities, including mechanical ones, are removed from the gas in these units. Amur Gas Processing Plant consists of 6 plants with a capacity of 7 billion cubic meters of feed gas per year each.

Background

Amur Gas Processing Plant of Gazprom PJSC will become one of the world's largest natural gas processing sites with a capacity of 42 billion cubic meters of gas per year. Its products include purified methane, ethane, propane, butane, pentane and hexane cut, and helium. Investor and owner of the Amur Gas Processing Plant project is Gazprom Pererabotka Blagoveshchensk LLC (part of Gazprom Group). Construction is managed by NIPIGAS JSC.