Nano-CoAl_2O_4 blue pigments were prepared by a microemulsion process with Span80-Tween60/hexanol/benzine systerm. The as-prepared blue pigments were characterized by XRD,TEM and color measurement. The influence of initial ion concentration on the microstructures and color properties of nano-CoAl_2O_4 pigment was specially investigated.
Study on reformulation of fluid catalytic cracking gasoline and increasing production of light olefins
The experimental results showed that FCC gasoline was obviously reformulated under appropriate reaction conditions.
The olefins (olefins with C atom number above 4) content of FCC gasoline was markedly reduced, and the aromatics content and octane number were increased.
The upgraded gasoline met the new standard of gasoline, and meanwhile, higher yields of light olefins were obtained.
Furthermore, higher reaction temperature, higher mass ratio of catalyst to oil, higher mass ratio of water to oil, and lower space velocity were found to be beneficial to FCC gasoline reformulation and light olefins production.
Modern state of the catalytic reforming of petrol fractions.
Diagnostic ratios indicated combustion of wood and coal, emissions from petrol and diesel engines, and dust resuspension as sources that predominantly contributed to the atmospheric PAH concentrations.
Characterization of on-road CO, HC and NO emissions for petrol vehicle fleet in China city
The alkene-rich petrol fraction from refinery fluid catalytic cracking (FCC) has been characterized by GC and GC-MS.
The proposed coating was applied for aromatic hydrocarbons determination in petrol station waste waters.
Identification of Oxygen-containing Compounds in Benzine and Kerosene Oil Fractions and Determination of Sulfur and Halogen Cont
A procedure based on X-ray fluorescence and inductively coupled plasma with mass spectrometric recording was developed for express determination of the content of sulfur and halogen-containing compounds in benzine and kerosene oil fractions.
A formulation composed of tert-butylpyrocatechol with copper diethyldithiocarbamate was developed for inhibiting thermal polymerization of styrene and liquid pyrolysis products of 30-180°C benzine fractions, and its performance was studied.
Gait disturbance occurred in the 4 laborers who were engaged in the work of cleaning Nishijin brocade sashes with petroleum benzine.
The workshop where they conducted operations was so poorly ventilated that the vapor concentration of petroleum benzine would reach an extraordinarily high level.