Patent List of Tianjin Bohua Engineering Co., Ltd. (Authorized)
| NO | name | type |
| 1 | Device and method for adjusting and controlling oxidation reaction temperature in fixed bed maleic anhydride production by n-butane method | invent |
| 2 | Tube heat exchanger suitable for high temperature gas | practical |
| 3 | Automatic feeding system for roller kiln | invent |
| 4 | Device and method for recovering light components by using flash tank | invent |
| 5 | Device and method for removing heat from acrolein oxidation reaction | invent |
| 6 | Butane-air mixing distributor | invent |
| 7 | Combustion furnace for producing tail gas with an annual output of 60,000 tons of carbon black | invent |
| 8 | Waste heat recovery system and combined alkali project using it | practical |
| 9 | Safety system of carbon disulfide storage tank | practical |
| 10 | Maleic anhydride pow recovery equipment and maleic anhydride powder recovery production system | practical |
| 11 | Maleic anhydride pow recovery equipment and maleic anhydride powder recovery production system | practical |
| 12 | Melting device and maleic anhydride powder recovery equipment | practical |
| 13 | Safety instrument system for paste resin production | practical |
| 14 | air-filter | practical |
| 15 | Safety Instrumentation System for Viscosity Reducing Resin Production | practical |
| 16 | wastewater treatment equipment | practical |
| 17 | Equipment for removing vinyl chloride from slurry in viscosity-reducing resin production | practical |
| 18 | Air drying tower device for PVC special resin | practical |
| 19 | Waste heat recovery system and method | invent |
| 20 | Closed continuous production equipment for emulsion resin plant | practical |
| 21 | Paste resin drying production system | practical |
| 22 | Industrial waste salt treatment equipment | practical |
| 23 | Ammonia distillation tower for production of high-purity magnesium hydroxide | practical |
| 24 | Gas converter and vinyl chloride production device | practical |
| 25 | Salinization system for reuse of ammonia evaporation waste liquid after treatment by ammonia-alkali method | practical |
| 26 | Ethylene glycol solution freezing system | practical |
| 27 | Electronic alkali production system | practical |
| 28 | Carbon disulfide steam bag and carbon disulfide production device | practical |
| 29 | heating system | practical |
| 30 | Floor slab and substation | practical |
| 31 | Toxic gas exhaust device | practical |
| 32 | Greenhouse heating system | practical |
| 33 | Propylene recovery equipment | practical |
| 34 | Refrigeration system of cold storage freezing station | practical |
| 35 | Liquid-liquid two-phase automatic separation device | practical |
| 36 | Discharge scraper for lime kiln and lime kiln provided with same | practical |
| 37 | TA residue closed conveying device | practical |
| 38 | Air conditioning system of explosion-proof control room | practical |
| 39 | Natural gas carbon disulfide reaction system and safety instrument system thereof | practical |
| 40 | Integrated high-temperature direct chlorination system | practical |
| 41 | Oxygen chlorination system base on four-stage reactor | practical |
| 42 | Liquid sulfur filtering, metering and feeding system | practical |
| 43 | Perimeter alarm system for chemical industry area | practical |
| 44 | Clean air conditioning system | practical |
| 45 | Fluidized bed tail gas treatment equipment for producing heavy soda ash by solid-phase hydration method | practical |
| 46 | Refined salt dissolving equipment | practical |
| 47 | Mechanism for adjusting cathode inlet temperature of ion-exchange membrane caustic soda electrolyzer | practical |
| 48 | Interconnection network laid by prefabricated metal members | practical |
| 49 | Casing pipe reactor | practical |
| 50 | Feeding device of coating agent for PVC polymerization reaction kettle | practical |
| 51 | Control system of motor | practical |
| 52 | Dual-power mutual-throw fire control system | practical |
| 53 | Solvent recovery system for wastewater in maleic anhydride production | practical |
| 54 | Safety interlock control system in the process of producing vinyl chloride by high-temperature chlorination reaction | practical |
| 55 | An alkali evaporation device | practical |
| 56 | Heating control circuit of motor space heater and motor control system | practical |
| 57 | Curing equipment for synthetic resin | practical |
| 58 | Switch state monitor system of circuit breaker | practical |
| 59 | Separation device for chemical reaction products containing suspended particles | practical |
| 60 | Purification device for treating ammonium chloride drying tail gas | practical |
| 61 | Large-diameter high-pressure zirconium clad pressure vessel, and manufacturing method and application thereof | invent |
| 62 | Chlorination reaction system | practical |
| 63 | Building structure of linhai chemical storage tank area | practical |
| 64 | System for utilize residual pressure of circulating cool water in soda ash preparation process by ammonia-alkali method | practical |
| 65 | Hydration reaction device | practical |
| 66 | Floor structure of chemical storage area | practical |
| 67 | Application of toxic and harmful gas detector in linkage fire water spraying system of liquid ammonia storage tank | practical |
| 68 | Cold and hot process gas heat exchanger | practical |
| 69 | Fixed bed reactor for preparing maleic anhydride by n-butane oxidation method | practical |
| 70 | Heavy ash process production system and production process thereof | invent |
| 71 | Tar cleaning device of absorption tower in maleic anhydride production | practical |
| 72 | Method and system for design flow field of maleic anhydride reactor | invent |
| 73 | Fixed bed reactor for preparing propylene alcohol by propylene oxidation | practical |
| 74 | Reaction section of integrate high-temperature chlorination reactor | practical |
| 75 | Precise feeding equipment and maleic anhydride production system | invent |
| 76 | Production method and device for large-scale maleic anhydride gas absorption | invent |
| 77 | System for treat wastewater from rubber accelerator production | practical |
| 78 | System for exhausting non-condensable gas in fluorine chemical production | practical |
