i.e., no significant variations in time of the operational parameters such as pressures or flow rates. However, it is well-known from practice that pipelines operate under conditions or regimes that are far away from steady-state conditions. The analysis of the transient flow ...
Formate can be produced electrochemically or by catalytic hydrogenation4,5,6, is fully miscible with water, non-flammable and of little toxicity to the human worker7. To develop a formate-based bioeconomy, recent efforts have focused on converting common platform organisms, such as Escherichia coli...
A method of in-service cleaning an operating column by inserting into the column a lance through which a compatible liquid is dispensed at a pressure of at least about 5000 psig. Also disclosed is apparatus which comprises a column through which a fluid can pass, nozzles mounted on the out...
Cell membranes were then broken by passing the cells three times through a precooled (4 °C) French press at 1,000 psig. Unbroken cells were removed by centrifugation at 4,000g for 15 min at 4 °C. Then the supernatant was centrifuged at 100,000g for 1 h at 4 °C ...
Instrument parameters were set to run at; source gas temperature and flow of 200 °C and 10 L/min, sheath gas temperature and flow of 350 °C and 10 L/min, nebulizer pressure at 50 psig. Capillary and nozzle voltages were set to 4000 V and 0 V respectively. MS1 was...
≤56.4 mL/min air diffusion at 2.8 bar (40 psig) and 23 °C ( in water)0.07 bar max. inlet pressure (1 psi) at 135 °C (Reverse)1.0 bar max. inlet pressure (15 psi) at 135 °C (Forward)1.7 bar max. inlet pressure (25 psi) at 80 °C (Forward)1700 bar max. differential ...
PSIA stands for “pounds per square inch absolute,” measured with respect to zero pressure. PSIA transducers measure all pressure forces detected by the strain gauge, including atmospheric pressure.PSIG stands for “pounds per square inch gauge,” measured with respect to atmospheric pressure. PSIG ...
A plant decides to add a nitrogen blanket (at 5 psig) to a storage tank holding up to 25,000 gal of a hydrocarbon mixture having kerosene-like properties (Sg = 0.81 and viscosity = 1.125 cP) and pumps this material into a process reactor operating at 30 psig (Figure 4-21). Liquid ...
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at 35 psig. Sheath gas temperature was set to 250 °C with a flow rate of 12 l min−1. Nozzle voltage was set to 1,500 V, and capillary voltage was set to 3,500 V. Dynamic multiple reaction monitoring was used to quantify analytes, using nitrogen as the collision ...