Hydrogen and carbon oxides are reacted to form methane by passing an inlet stream of preheated methanation synthesis gas together with a recycle stream of product gas through a catalyst bed in an adiabatic methanation reactor. The inlet temperature is between 250 DEG and 350 DEG C, the outlet temperature between 500 DEG and 700 DEG C. The recycle stream is withdrawn from the outlet stream afte...

Ethylene glycol is prepared by a process in which ethylene oxide is extracted from an aqueous solution with near-critical or super-critical carbon dioxide. Thereafter an ethylene oxide-carbon dioxide-water mixture is contacted with a catalyst to form ethylene carbonate, which is then hydrolyzed to ethylene glycol in the presence of the same catalyst. The ethylene glycol is separated as product and...

PURPOSE:To prevent drop of rotating number, blowing-up or stall of engine by providing an engaging and disengaging sensing means outputting an engaging and disengaging sensing signal to a control means when reaching engaging and disengaging setting oil pressure. CONSTITUTION:An actuator is communicated to an oil pressure source 20 through an oil path 28 provided with an oil path change-over valve ...

Slag formed in steel melt operations is foamed to create a protective cover using a composition comprised essentially of calcium oxide.

An oil pressure control means for operating an automatic transmission for automobiles in a manner to establish various speed shift stages in accordance with the balance of the throttle pressure and the governor pressure, including a combination of a brake-sensitive control means operating in response to operation of a brake pedal and an oil passage change-over means, said combination being adapted...

Chatter is suppressed in a solids-liquid separating centrifuge by including, in an external connection to a holder of the speed change gearing between the centrifuge bowl and conveyor, a spring and mass means which is torsionally resilient about the axis of the connection such that it will vibrate about that axis under chatter conditions at the chatter frequency, and which has a spring rate within...

PURPOSE:To improve thermal efficiency in a composite power plant by using the exhaust gas from an exhaust heat recovery steam boiler as heat source for a Freon boiler.

Apparatus for comminuting industrial and/or bulky domestic waste materials has an upright housing with a funnel-shaped section located above a stationary counterknife which cooperates with a single rotary knife therebelow or with two rotary knifes respectively disposed thereabove and therebelow. The inner side of the funnel-shaped housing section has a downwardly sloping spiral surface which advan...

An apparatus for preventing scatter of fly in a winder having a plurality of winding units where a yarn is unwound from a yarn feeding bobbin and is taken-up on a take-up package. A first cover member for covering the yarn feeding bobbin unwound at a winding unit and a second cover member for covering a tenser portion are provided with each winding unit.

PCT No. PCT/HU83/00029 Sec. 371 Date Jan. 4, 1984 Sec. 102(e) Date Jan. 4, 1984 PCT Filed Jun. 2, 1983 PCT Pub. No. WO83/04345 PCT Pub. Date Dec. 8, 1983.The object of the invention is a method for the production of positive active material for lead storage batteries. This active material consists of PbO and PbOx-where x is a number between 1 and 2-and some powder being composed of not more than 3...

A hammer adapted to be pivotally mounted between a pair of rotors in a hammer mill has a pair of sidewalls each of which is adjacent a rotor. Each sidewall has a recess which collects small pieces of scrap which get trapped between the sidewall and the adjacent rotor. A portion of the recess extends beyond the outer periphery of the adjacent rotor so that scrap collected in the recess can be eject...

The coating of the microporous separators of lead storage batteries with a highly porous glass wool mat on the side facing the negative electrode plates promotes the electrolyte exchange at these plates and also counteracts the tendency toward crumbling and toward the formation of spongy lead (mossing). The glass wool mat may be applied in the form of a plate or a slab to conventionally made separ...