scholarly journals Experimental Study on Combustion Characteristic of Yellow Phosphorus Tail Gas

2012 ◽  
Vol 16 ◽  
pp. 763-768 ◽  
Author(s):  
Zhou Zhou ◽  
Huaping Gao
Keyword(s):  
Experimental Study ◽  
Combustion Characteristic ◽  
Yellow Phosphorus

Experimental Study of Purifying Precipitated Silica Produced from Yellow Phosphorus Slag

2012 ◽  
Vol 455-456 ◽  
pp. 503-506 ◽  
Author(s):  
Guo Bing Li ◽  
Hai Lin ◽  
Yan Li Ma ◽  
Yi Su
Keyword(s):  
Experimental Study ◽  
Nitric Acid ◽  
Reaction Time ◽  
Nitric Acid Concentration ◽  
Acid Leaching ◽  
Quality Requirements ◽  
Solid Ratio ◽  
Precipitated Silica ◽  
Yellow Phosphorus ◽  
Fe Content

When precipitated silica was prepared from yellow phosphorus slag by the phosphoric acid leaching, the Fe content can not meet the quality requirements of the product. This article indicates the method of purifying precipitated silica with nitric acid solution, which may decrease the Fe content to about 0.02%. The purification optimum technical conditions are: the nitric acid concentration 8%, reaction time 2.0 hours, reaction temperature 343.15K, fluid solid ratio 4:1, stirring speed 300 rpm.

Combustion Experimental Study on Spouted Bed for Daqing Oil Shale Semi-Coke

2012 ◽  
Vol 614-615 ◽  
pp. 95-98
Author(s):  
Qing Wang ◽  
Xiang Zhao Kong ◽  
Hong Peng Liu ◽  
Guan Hua Xiao
Keyword(s):  
Experimental Study ◽  
Particle Size ◽  
Wind Speed ◽  
Carbon Content ◽  
Oil Shale ◽  
Great Influence ◽  
Operating Conditions ◽  
Combustion Characteristic ◽  
Spouted Bed ◽  
Coke Combustion

Daqing oil shale semi-coke combustion experiment has been performed through the Spouted bed experimental device for obtaining the temperature distribution, temperature and carbon content of separation materials. This paper presented the experimental study that the effect of three factors, containing screening particle size, wind speed and feeding flux, on the temperature variation of spouted bed and separation materials, and the carbon content in separation materials under different operating conditions. The experimental results show that the screening particle size and wind speed had great influence on the temperature of separation materials, while the carbon content is inversely proportional to the temperature of separation materials. This research further understands the combustion characteristic of Daqing oil shale semi-coke in spouted bed, establishing the foundation for the solid heat carrier retort in rotating retorting.

Experimental Study on Effect of Hot EGR on Combustion Characteristic of HICE under High Load Conditions

2012 ◽  
Vol 562-564 ◽  
pp. 1024-1027
Author(s):  
Xing Hua Liu ◽  
Dao Jing Wang ◽  
Fu Shui Liu
Keyword(s):  
Experimental Study ◽  
Combustion Engine ◽  
High Load ◽  
Intake Manifold ◽  
Combustion Characteristic ◽  
Test Results ◽  
Hydrogen Flow ◽  
Indicated Mean Effective Pressure ◽  
Quality Regulation ◽  
Load Conditions

In order to study the effect of hot EGR on combustion characteristic of hydrogen internal combustion engine (HICE), experimental study was taken on a 4 cylinder, 2.0L HICE. The speed was 3000rpm, and the throttle was fully open, the load was adjusted through quality regulation. When the hydrogen flow ratio was 2.79kg /h, the ignition advanced angle was optimized as maximum brake torque (MBT) timing, then the EGR valve was opened, and EGR valve was adjusted to control the flow of exhaust gas that back into the intake manifold. The test results show that: as the EGR ratio changing from 0(the EGR valve is fully closed) to 43.8%(the EGR valve is fully opened), the in-cylinder pressure is decreasing with the EGR ratio increasing; the coefficient of variation in indicated mean effective pressure (imepCOV) is not changing significantly at high load conditions, changing range is less than 1%; CA50 is postponed from 11.8oCAto15.2 oCA with EGR ratio increasing.

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