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Showing posts from November 8, 2019

General Checklist List the Essential Steps and precautions for Pre start and Starting up the Centrifugal Pumps

As General Checklist List the Essential Steps and  for Pre start and Starting up the Centrifugal Pumps ⁉ ️   ️  What’s the things you Should be attention physically ⁉ ✅ General centrifugal pump start up procedure:-  Before pump start-up you must perform these tasks:-  1️⃣ Open the suction valve , do priming by venting all the air inside the suction line by opening any vent or even the PG vent till liquid coming out then close , now you confirm no air inside the system to reduce the chances of pump getting cavitation 2️⃣ Open any recirculation or cooling lines. 3️⃣ Fully close or partially open the discharge valve, depending on system conditions.  4️⃣ Start the driver. 5️⃣ Slowly open the discharge valve until the pump reaches the desired flow.  6️⃣ Check the pressure gauge to ensure that the pump quickly reaches the correct discharge pressure.  7️⃣ If the pump fail to reach the correct pressure, perform...

Why Static Charge Is Dangerous In Industrial Or Manufacturing Industries.

⚠️ A common ignition source within Petrochemical, sparks resulting from static charge buildup and sudden discharge of it. 〽 ️ Electrostatic discharge occurs when two materials at different potentials or polarities come close enough together to generate a charge transfer. In an explosive environment, this sudden transfer of charges may be energetic enough to be an ignition source. ⚠️ Major Industrial Sources of Static electricity are:-  (a) The use of power, or conveyor belts in which non-conductive materials move over or between pulleys and rollers.  (b) Pulverized materials or dust passing through chutes or being conveyed pneumatically.  (c) The flow of fluids through pipes or conduits, or from orifices into tanks or containers. (d) The flow of gases from orifices.  (e) The use of rubber-tired vehicles. (f) The general accumulation of static charge on personnel in the workplace, particularly when they wear overalls made of synthetic materials. ...

Industrial H2 Production Process.

 ##  H2 production. ✅ 95% of H2 produced in the United States is made by NG reforming in large central plants   This is an important technology pathway for near-term H2 production. ✅ Steam methane reforming SMR is the most common and economical way to make hydrogen.There are 2 reactions: 1- the reforming reaction & 2- the water gas shift reaction.   ✅ Production process in which high-temperature steam (700°C–1,000°C) is used to produce H2 from a methane source, such as NG.   ✅ In SMR , methane reacts with steam under 3–25 bar pressure in the presence of a catalyst to produce H2, CO, and a relatively small amount of CO2   ✅ Steam reforming is endothermic so heat must be supplied to the process for the reaction to proceed this done via heater ✅ The furnace is where the process of liberating hydrogen from natural gas and steam begins. The gas-and-steam mixture travels down into reformer tubes that hang in v...