Shell Oil Comapny

Gunter K Eckstein

Pieter J Schuurman

Clifford C Segerstrom

Jacob H Stil

James A Salter

Hendricus Arien Dirkse

Andrew M Scott

Teunis Terlouw

Rudi Everts

Charles M Arbore

James J McCusker

Kurt Schleyer

A process for the gasification of coal is disclosed, the process being characterized by the removal of flyslag deposits in the quench zone of the process by temporarily reducing or stopping the flow of the quench gas to melt the deposits, and then resuming the ordinary quench gas flow.

Process for removal of flyash deposits

A method and apparatus for determining blockage of a coal gasification slag tap by observing changes in the pressure differential across a diaphragm seal located within an annulus formed by a pressurized vessel and a gasifier contained therewithin.

Apparatus for determination of slag tap blockage

The present invention is directed to an apparatus and method for equalizing the flow rate of a combustible, particulate solids, such as coal, and gas mixture discharged from a feed vessel apparatus in a uniform manner to a pressurized receiving reactor, such as a gasifier.

Feed hopper design

Determination of slag tap blockage

Process and apparatus for the preparation of synthesis gas by the partial combustion of a carbonaceous fuel with an oxygen-containing gas in a reactor also producing molten slag, the molten slag being removed through a slag discharge in the bottom portion of the reactor and being passed by gravity into a water bath where it is solidified by quenching. Solidified slag floating on the water of the water bath is removed therefrom by lowering the water level in the water bath to a location or point below the lower end of a baffle, the baffle being arranged in the water bath and dividing the water bath into an upper quenching zone and a lower capturing zone, and by raising the water level again to above the upper end of the baffle, thereby capturing floating slag under the baffle, the captured slag being discharged from the water bath through an outlet arranged at or near the top of the capturing zone.

Process and apparatus for the preparation of synthesis gas

Process for depressurizing fly-ash being contained in a first vessel comprising a pressurized gas by expanding the gas through at least one long and narrow pipe. The inlet of the pipe(s) dips under the upper level of the fly-ash in the first vessel. The outlet of the pipe(s) is situated in a second vessel being kept at a relatively low pressure. The gas flow through the pipe(s) entrains the fly-ash.

Growing community of inventors

Hamburg, Germany

Gunter K Eckstein