Shell Oil Comapny

Clifford C Segerstrom

Jacob H Stil

Pieter J Schuurman

Gunter K Eckstein

Ulrich Premel

Charles V Sternling

Bernardus H Mink

Egon L Doering

Hsi L Wu

Adrianus J Ooms

Matheus M Van Kessel

Hans-Wolfgang Luke

Leszek Gawloski

Gerd Harenslak

Paul F Russell

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

An apparatus for injecting quench gas (cooled syngas) through an injection ring located around the circumference of the gasifier exit duct and having ports in communication with the interior of said duct to achieve thorough mixing of the gasifier gas with the injected quench gas. Interchangeable rings having different configurations and dimensions of the ports may be used to accomodate various types of coal. The rings may be fabricated in sections for ease of maintenance and replacement.

Interchangeable quench gas injection ring

An apparatus and method for reversing the flow of a synthesis gas from a coal gasification reactor containing solids that tend to cause fouling of heat transfer surfaces by adjusting the volume and shape of a gas-reversal space within a chamber downstream of the reactor.

Process for treating syngas using a gas reversing chamber

A method and apparatus for separating slag discharged from a coal gasification reactor to a slag water bath by converging the flow of the slag with a chamber at least partially submerged in the slag water bath such that the flow of slag is converged to a diameter no greater than the diameter of the discharge opening of the slag water bath.

Slag water bath process

The present invention is directed to a method and apparatus for controlling rapping of heat exchanging surfaces based on the heat transfer coefficient of the exchanger systems.

Controlling rapping cycle

Determination of slag tap blockage

Growing community of inventors

Houston, TX, United States of America

Clifford C Segerstrom