TITLE: Study of Ebullated Bed Fluid Dynamics for H-Coal. Annual Progress Report No. 1, August 1, 1977-August 31, 1978.

AUTHOR: I. A. Vasalos; E. M. Bild; T. D. Evans; J. W. Jones; A. W. Larson.

INST.  AUTHOR: Amoco Oil Co., Naperville, IL. Research and Development Dept.

SPONSOR: Department of Energy.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  Feb 79,  156p.

ABSTRACT:

Understanding the hydrodynamic behavior of the H-Coal reactor is the main objective of this project. To that end, a literature search reviewed all information related to the fluid dynamics behavior of gas/liquid/solid systems. Concurrently, a cold flow model including a glass reactor 6'' in diameter and 20' high was constructed following practices established by HRI in their process development unit. The cold flow model is used to conduct experiments with gas and liquid slurries which at room temperature have similar properties to those of the H-Coal liquids at reactor conditions. The volume fraction occupied by gas/liquid slurries and catalyst particles is determined by several experimental techniques. The use of a mini computer for data collection and calculation has greatly accelerated the analysis and reporting of data. Data on nitrogen/water/HDS catalyst and coal char fines are presented in this report. Correlations identified in the literature search were utilized to analyze the data.  From this analysis it became evident that the Richardson-Zaki correlation adequately describes the effect of liquid flow rate on catalyst expansion.  The effect of coal char fines can be accounted for by the effect it has on the liquid viscosity. For the gas/slurry/catalyst and the water/nitrogen systems, a model developed by Darton and Harrison was used to analyze the data. Recognizing that the ultimate implementation of this work will require the development of a mathematical model, continuing emphasis will be placed on identifying the proper correlation describing the H-Coal reactor fluid dynamics. Since the major goal of this program is to be of use to the H-Coal project, the experimental runs will emphasize this objective throughout the rest of the program's life. (ERA citation 05:000016)

CONTRACT  NUMBER: EF-77-C-01-2588