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Results
               Application No./Patent No.        application type           Patent name

2005 
               200520013036.X          utility model             A tray for urea hydrolysis
               200520013319.4          utility model             The device for the treatment of ammonia and urea waste liquid with low-pressure
               200520013645.5          utility model             The energy saving vacuum concentrator for urea production
               200520013150.2          utility model             The connection structure between the tray and the tower
2006  
               200620104534.X          utility model             The evaporative cooler
               200620100588.9        utility model               The fine grain grid filler
               200620108174.0          utility model              Improved cap tray
2007
               200720105383.4          utility model             A tray for the urea synthesis
               200720105382.X          utility model             The mounting structure of the tray for urea synthesis
               200730114260.2       appearance desisn    The Air chamber type cap
2008
               200820208815.9          utility model             A device for removing the sulfur dioxide from exhaust gas
               200820171378.8          utility model             An evaporation device for concentrating the urea solution
               200820171375.4          utility model             The dedusting device of urea cooling fluidized bed
               200820171376.9          utility model             A fluidized cooling device for urea pelletizing tower
               200820120781.8          utility model             An explosion protection device for urea production system
               200820082170.9          utility model             A device for producing dimethyl ether by the dehydration of methanol
               200820171377.3          utility model             Gas - liquid distributor
               200810059275.7               patent                  A device for the dehydration of methanol to make dimethyl ether
               200810059199.X               patent                  The preparation of dimethyl ether by the dehydration of methanol
               200810163800.X               patent                  A device for removing the sulfur dioxide from exhaust gas
2009
               200920199856.0          utility model            An absorption device for the urea production by aqueous solution full cycle
               200920199857.5          utility model            A device for the urea fluidized dust removal
               200920122450.2          utility model            An evaporator device for urea production
               200920215648.5          utility model            A tray for urea synthesis
               200920122449.X          utility model            The tray of absorption and separation tower
               200920198265.1          utility model            The preparation of urea from aqueous solution by full cycle technology

2010
               201020176933.3          utility model             The internal structure of urea synthesis tower
               201020540712.X          utility model             A device for the sulfur dioxide removal from the flue gas
               201020103900.6          utility model             A urea synthesis tower
               201020231861.8          utility model             A device for the removing sulfur dioxide from the exhaust gas and the ammonium sulfate byproduction
               201020050272.X          utility model             An energy saving combined device for the urea production and hydrolysis
               ZL201010205025.7         patent                    A device for removing the sulfur dioxide from the exhaust gas and the ammonium sulfate byproduction
               ZL201010290578.7         patent                    A device for removing the sulfur dioxide from flue gas

2011
               201120101537.9           utility model            The tray structure in urea synthesis of methanol
               201120101536.4           utility model            A device for the combined production of methanol and ammonia by means of methanol purge gas
               ZL201110227477.X          patent                   A method of thiosulfate production from the industrial flue gas and the removal of carbon dioxide
2012
               ZL201220078734.8      utility model           A desulfurization device
               ZL201220206669.2      utility model           A device for the dust removal and the recovery of urea granules
               ZL201220141103.6      utility model           A device  for the coal tar hydrogenation
               ZL201220206655.0      utility model           A suction device for the urea production
               ZL201220340257.8      utility model           Evaporative cooler
               ZL201220374584.5      utility model           A waste liquid treatment device for the synthesis of ammonia and urea
               ZL201210056077.1      utility model           A method of the determination of sodium thiocyanate in the desulfurization solution
2013 
               ZL201320359102.3      utility model           A tray for the urea synthesis tower
               ZL201310743345.1          patent                 A method of diesel fuel synthesis from the anthracene oil hydrogenation in the coal tar
               ZL201310743323.5          patent                 The catalyst and its preparation for coal tar hydrocracking
               ZL201310743354.0          patent                 The protective agent and its preparation method for the coal tar hydrogenation catalyst

2015
               ZL201520156811.0       utility model          A device for the synthesis of
               ZL201521145219.7       utility model          A device for the synthesis of methyl nitrite

                ZL201521145220.X      utility model          A device forthe synthesis of ethylene glycol

2016
               ZL201620165167.8       utility model          A device for removing the hydrogen sulfide gas and regenerating sulfur from industrial raw material gas
Others
               ZL99230464.4                utility model          Cap type urea synthesis tray
               ZL00249586.4                utility model           A cleaning tower for the urea vaporization gas
               ZL01210531.7                utility model          The internals of urea synthesis tower
               ZL02112888.X                      patent               A kind of binary composite iron - alkali desulfurization catalyst
               ZL03230513.3                utility model          The suction system tower of the urea production device
               ZL03255869.4                utility model          An evaporative cooler
               ZL03209775.1                utility model          The waste treatment device for the ammonia and urea
               ZL03229978.8                utility model           A boiling and cooling device of urea particle
               ZL200420082273.7       utility model           A methanation reactor
               ZL200420022934.7       utility model           A gas chamber type tray for the urea synthesis







 
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