Tanks liquid transfer

Flammable liquids stored in atmospheric tanks or transferred, which are kept below their normal boiling point without benefit of chilling or refrigerating and are not connected to a process... 

The facility stores ammonia to supply nearby fertilizer manufacturers. It is transported to the plant by ship, transferred and stored in the tank for transfer as needed. The facility mainly consists of a storage tank, a refrigeration system, a control system, and a pipe connecting the tank with the plants. Ammonia is transported and stored as a refrigerated liquid (-33 C) at atmospheric pressure. 

Transfer of liquid ammonia from the ship using a special pipeline to the thermally insulated storage tank. The transfer, requiring 20 hours, uses the ship s pumps there are five transfers each year. 

Emission from an open liquid face (e.g., open tanks, liquid spills on the floor surface) can be evaluated using equations based on criteria relations and empirical data. Assuming that the heat and mass transfer processes can be described using similar differential equations, the criteria equation describing the evaporation process will be similar to one describing the heat transfer ... 

Heat Transfer Coils in Tank, Liquid Agitated... 

Liquid is fed continuously to a stirred tank, which is heated by internal steam coils (Fig. 1.21). The tank operates at constant volume conditions. The system is therefore modelled by means of a dynamic heat balance equation, combined with an expression for the rate of heat transfer from the coils to the tank liquid. 

The overall rate of reaction calculated for the three-phase fluidised-bed reactor above is approximately one tenth of the rate calculated for the agitated tank slurry reactor in Example 4.6. The main reasons are the very poor effectiveness factor and the relatively smaller external surface area for mass transfer caused by using the larger particles. Even the gas-liquid transfer resistance is greater for the three-phase fluidised-bed, in spite of the larger particles being able to produce relatively small bubbles these bubbles are not however as small as can be produced... 

The combustion test program of synthetic liquid fuels is being conducted in a 20-horsepower (hp) firetube boiler and associated equipment. The system consists of a 20-hp, Johnston, three-pass, firetube boiler designed to transfer roughly 670,000 Btu/hr to the water side a water treatment and feed system a fuel holding tank and transfer pump and a stack exhaust duct equipped with numerous sample ports for gaseous and particulate emissions testing. 

Storage tanks and transfer lines of liquid oxygen systems must be well insulated to prevent the condensation of moisture or air with subsequent ice formation on the outside. Vacuum jackets, formed plastics, and alternate layers of aluminum foil and glass-fiber mats have been used successfully. 

As with liquid oxygen, storage tanks and transfer lines of liquid hydrogen systems must be well insulated, to prevent the evaporation of hydrogen or condensation of moisture or... 

The Asahi process (Fig. 16-63) is used principally for high-volume water treatment. The liquid to be treated is passed upward through a resin bed in the adsorption tank. The upward flow at 30-40 m/h [12-16 gaF(min fF)] keeps the bed packed against the top. After apre-set time, 10 to 60 min, the flow is interrupted for about 30 s, allowing the entire bed to drop. A small portion (10 percent or less) of the ion-exchange resin is removed from the bottom of the adsorption tank and transferred hydraulically to the hopper feeding the regeneration tank. 

Turbines, propellers, and paddles power = 0.2 to 1.5 kW/m for mixing liquids with impeller discharge rate >20 x liquid flow rate into tank. Heat transfer, 0.4 to 2 kW/m but don t neglect heat input from the mixer mass transfer 2 to 4 kW/mT Turbines, propellers, and paddles power = 1 to 4 kW/m for mass transfer. Air agitation diffused air 0.3 to 0.5 NdmVs-m 1.5 to 6 dmVs m... 

A drawing of the cross section of a Dewar vessel is shown in Figure 2 [1]. It shows the basic elements of a high performance cryogenic storage vessel. A fill and drain line is provided at the bottom of the vessel to transfer fluid in and out of the tank. Liquid can be removed either by pressurization of the inner vessel with a pressurization gas or by a liquid pump. A vapor vent line is located near the top of the vessel to allow vapor formed from heat leak to escape. This line can also be used to introduce a pressurization gas. If pressurization is used to force liquid from the tank, a diffuser is provided to distribute the pressurization gas in the vapor space away from the surface of the cold liquid. This prevents the unwanted condensation of the warm pressurization gas by the cold liquid surface. 

Cargo tanks are large-capacity cryogenic storage tanks either mounted on a truck body or forming a semitrailer body. The maximum capacity of these units is 11,300 U.S. gal although the most common size used to ship liquefied industrial gas products over the road is 7000 U.S. gal [2]. The truck has a high pressure liquid transfer pump on board which can fill a... 

Sinclair et al. (79) have compared the environmental (primarily carbon) footprint of a monoclonal antibody (mAb) production facility using traditional stainless steel bioreactors with that of a facility utilizing disposable equipment for cell culture, mixing solutions, holding tanks, and liquid transfer. The mAbs are intended for use in therapeutic applications and are produced in a facility containing three 2000-L disposable bioreactors. The authors cradle-to-grave analysis took into account facility... 

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