Aiming at acute characteristics of flammability,explosibility,causticity and leakiness of high sour natural gas,giving full consideration to local natural conditions in Sichuan Province and starting with purification ...Aiming at acute characteristics of flammability,explosibility,causticity and leakiness of high sour natural gas,giving full consideration to local natural conditions in Sichuan Province and starting with purification process,the paper analyzed process configurations,energy utilization and conservation,safety and environment protection measures. The integrated technology and engineering scheme for high sour natural gas purification was established and successfully used in industrial application.展开更多
The desulfurization performance of the UDS solvents was investigated at an industrial side-stream plant and was compared with that of MDEA solvent.A mass transfer performance model was employed for explaining the COS ...The desulfurization performance of the UDS solvents was investigated at an industrial side-stream plant and was compared with that of MDEA solvent.A mass transfer performance model was employed for explaining the COS absorption into different solvents.Meanwhile,the regeneration performance of the UDS solvents was evaluated in side-stream tests.Results indicate that under the conditions covering an absorption temperature of 40℃,a pressure of 8.0 MPa,and a gas to liquid volume ratio(V/L)of around 230,the H2S content in purified gas can be reduced to 4.2 mg/m3 and 0 by using solvents UDS-II and UDS-III,respectively.Moreover,the total sulfur content in both purified gases is less than 80 mg/m3.As a result,the UDS-III solvent shows by 30 percentage points higher in COS removal efficiency than MDEA.In addition,the total volume mass transfer coefficient of UDS solvent is found to be twice higher than that of MDEA.Furthermore,the UDS solvents exhibit satisfactory thermal stability and regeneration performance.展开更多
文摘Aiming at acute characteristics of flammability,explosibility,causticity and leakiness of high sour natural gas,giving full consideration to local natural conditions in Sichuan Province and starting with purification process,the paper analyzed process configurations,energy utilization and conservation,safety and environment protection measures. The integrated technology and engineering scheme for high sour natural gas purification was established and successfully used in industrial application.
基金financial support from the National Key Science and Technology Project of China (2011ZX05017-005)the Fundamental Research Funds for the Central Universities (No.22A201514010)
文摘The desulfurization performance of the UDS solvents was investigated at an industrial side-stream plant and was compared with that of MDEA solvent.A mass transfer performance model was employed for explaining the COS absorption into different solvents.Meanwhile,the regeneration performance of the UDS solvents was evaluated in side-stream tests.Results indicate that under the conditions covering an absorption temperature of 40℃,a pressure of 8.0 MPa,and a gas to liquid volume ratio(V/L)of around 230,the H2S content in purified gas can be reduced to 4.2 mg/m3 and 0 by using solvents UDS-II and UDS-III,respectively.Moreover,the total sulfur content in both purified gases is less than 80 mg/m3.As a result,the UDS-III solvent shows by 30 percentage points higher in COS removal efficiency than MDEA.In addition,the total volume mass transfer coefficient of UDS solvent is found to be twice higher than that of MDEA.Furthermore,the UDS solvents exhibit satisfactory thermal stability and regeneration performance.
