Fuling
Fuling Huang, Heilongjiang Province CN
Patent application number | Description | Published |
---|---|---|
20120232321 | METHOD FOR SYNTHESIS OF 1-DECENE OLIGOMER - A method for synthesis of 1-decene oligomer is provided, wherein 1-decene is polymerized at 80-120° C., 0.8-1.4 MPa in the presence of aluminum trichloride catalyst supported on gamma-alumina and n-hexane solvent where the volume ratio of 1-decene to n-hexane is 3:8-4:1. The catalyst is treated as follows: impregnating gamma-alumina carrier in 0.5-2.0 mol of hydrochloric acid, sulfuric acid, nitric acid or mixtures thereof, then vacuum drying at 80-100° C. and calcining at 400-800° C.; dissolving 5-10 g of anhydrous aluminum trichloride in 100 ml of tetrachloromethane, trichloromethane or dichloromethane solvent; adding the obtained solution into 10-20 g of activated alumina carrier and obtaining the catalyst after vacuum drying. The conversion rate of 1-decene is 50 wt % or more. The oligomer has a kinematic viscosity at 40° C. of 6.0-25 mm2/s and a viscosity index of 160-262. | 09-13-2012 |
Fuling Huang, Daqing CN
Patent application number | Description | Published |
---|---|---|
20120310025 | Catalyst for Synthesizing 1-Hexene from Ethylene Trimerization and Application Thereof - A catalyst for synthesizing 1-hexene from ethylene trimerization and its application are provided. Said catalyst consists of (a) the compound containing P and N, (b) electron donor, (c) Cr compound, (d) carrier and (e) accelerator. The molar ratio of (a), (b), (c), (d) and (e) is 0.5-100:0.5-100:1:0.5-10:50-5000. The catalyst is prepared by mixing the components of (a)-(e) in an ethylene trimerization apparatus in situ and ethylene is introduced into the apparatus continuously. The prepared catalyst can be used to synthesize 1-hexene from ethylene trimerization in the inert solvents. The trimerization is performed at 30-150° C. and 0.5-10.0 MPa for 0.1-4 hours. The catalyst has high catalytic activity and high 1-hexene selectivity. During the process of ethylene trimerization, by-product polyethylene does not stick to the apparatus. | 12-06-2012 |
Fuling Huang, Beijing CN
Patent application number | Description | Published |
---|---|---|
20130090508 | Method for Preparing 1-Octene by Oligomerization of Ethylene - Disclosed is a method for preparing 1-octene in the presence of a catalyst system for ethylene oligomerization, which includes: premixing a part of ethylene gas as raw material with a solvent, mixing with the components a+b, c and d of the catalyst system, and then sending in a reactor; directly sending the rest of ethylene gas in the reactor; discharging the resultant liquid from the upper part of the reactor into an overflow channel; adding a catalysis stopping agent to the overflow channel; and then separating the resultant liquid. The advantages of the method are high selectivity of 1-octene and high catalytic activity. | 04-11-2013 |
Fuling Liu, San Jose, CA US
Patent application number | Description | Published |
---|---|---|
20140281235 | System and Method for Software/Hardware Coordinated Adaptive Performance Monitoring - System and method embodiments are provided for coordinated hardware and software performance monitoring to determine a suitable polling time for memory cache during run time. The system and method adapt to the time-varying software workload by determining a next polling time based on captured local characteristics of memory access pattern over time. The adaptive adjustment of polling time according to system performance and dynamic software workload allows capturing more accurately the local characteristics of memory access pattern. An embodiment method includes capturing, at a current polling instance, hardware performance parameters to manage the memory cache, and adjusting a time interval for a next polling instance according to the hardware performance parameters. The captured hardware performance parameters are used to compute performance metrics, which are then used to determine the time interval for the next polling instance. | 09-18-2014 |