(1)300×104 m3/d desulfurization skid-mounted plant for CNPC
The natural gas, after flash evaporation from MDEA rich liquid, is removed H2S by acid water separator, and the separated MDEA solution is also pumped to the desulfurization tower.
The rich TEG solution used in dehydration tower goes into distillation tower, flash evaporation tank and filter and is heated and regenerated into lean TEG solution. Then it is pumped to the dehydration tower for circulating dehydration.
After the H2S gas separated by the acid water separator is injected into the acid gas storage tank, it is preheated by the reaction furnace, reacts with the air sucked in by the air compressor to generate SO2.
SO2 reacts with the remaining H2S (Claus reaction) to generate elemental sulfur, which is then cooled to obtain sulfur.
Feed gas,after its solid and liquid impurities are removed through separator and filter separator, enters the float valve tower for desulfurization, a tower which uses MDEA solution as desulfurizer.
The gas from the top of the float valve tower goes through the wet purification separator to remove a small amount of MDEA liquid entrained in the gas, and then the wet natural gas enters the dehydration tower to dehydrate through TEG.
At last, the dry natural gas from the dehydration tower is exported as qualified commercial gas.
The rich MDEA liquid in the desulfurization tower is flash evaporated to remove hydrocarbons and enter the filter for filtration. After that, it enters the regeneration tower and is heated by steam to regenerate into poor MDEA liquid, which is pumped to the desulfurization tower for circulating desulfurization.
(2) 30×104 m3/d desulphurization plant for CNPC
The supporting project of skid mounted desulfurization plant for marine gas wells in Western Sichuan Province,natural gas treatment skid,is the first project that our company cooperates with Sinopec Petroleum Engineering Design Co., Ltd.;
This project is the supporting project of natural gas desulfurization with 0.3 100×104 m3/d in Pengzhou 1 well, including natural gas processing skid, sulfur recovery and molding, public engineering and other units.
(3)4 million Nm3 deacidification package in Yanchang Oilfield
Yangqiaopan Purification Plant, with a total of 2 trains 4 millions Nm3/d deacidification and dehydration unit.
There are a total of 17 individual buildings, with a pipe gallery of approximately 1600m and a steel platform of 1260m2.
Operating pressure of raw gas: 4.9MPa DN350
(4)40000Nm3/d associated gas desulfurization unit
Processing capacity: 40000 Nm3/day
Process: Complex iron desulfurization
The annual operating hours are calculated as 8000 hours.
Product Proposal
1) Associated gas outlet H2S ≤ 20mg/m3 (14ppm);
2) The removed H2S reaches the recoverable foam sulfur element;
(5)60,000Nm3/d gas desulfurization unit
Medium: Sour natural gas at the wellhead
Maximum H2S content: ≤ 10000 ppmv
Natural gas processing capacity: ≤ 2500 Nm3/h,
Inlet pressure: 0.2~1.3 MPa (g)
Design pressure: 1.5MPa (g)
Inlet temperature: 20-35 ℃
H2S content after treatment: ≤ 20 ppmv
60,000Nm3/d gas desulfurization unit