TABLE OF CONTENTS

Page

INTRODUCTION

METHOD

Modifications to the Program

Selection of phases at transition

Singular matrix and no convergence

Test for condensed species

Passing a point

Use of previous compositions

Operation of the program

Thermodynamic Data

Standard States

RESULTS AND DISCUSSION

Si02 System

The Systems CaO-SiO2 and MgO-SiO2

MgO-CO2 System

MgO-H2O System

CaO-H2O System

Tremolite -H20 System

Tremolite-Calcite-Quartz Reaction

MgO-CO2 -H2O System

CONCLUSIONS

REFERENCES CITED
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APPENDIXES


A - EQUILIBRIUM PROGRAM DESCRIPTION

B - EQUILIBRIUM PROGRAM INPUT

C - EQUILIBRIUM PROGRAM COMMON VARIABLES

D - EQUILIBRIUM PROGRAM SUBROUTINE VARIABLES

E - LEASE PROGRAM DESCRIPTION

F - LEASE PROGRAM INPUT

G - LEASE PROGRAM OUTPUT

H - LEASE PROGRAM VARIABLES

I - FREE PROGRAM DESCRIPTION

J - FREE PROGRAM VARIABLES

K - EQUILIBRIUM PROGRAM LISTING

L - EQUILIBRIUM PROGRAM SAMPLE INPUT AND OUTPUT

M - LEASE PROGRAM LISTING

N - LEASE PROGRAM SAMPLE INPUT AND OUTPUT

0 - FREE PROGRAM LISTING

P - FREE PROGRAM SAMPLE OUTPUT

Q - COEFFICIENT DATA LISTING
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LIST OF TABLES


1. List of symbols

2. Iteration equations to determine equilibrium composition

3. Program input

4. Thermo data

5. Reactant data

6. Simple reactant cards for ALTER, SYSTM, and PLUS problems
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7. Namelist data

8. Simultaneous least squares fitting of heat capacity, enthalpy, and entropy

9. LEASE input data
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LIST OF ILLUSTRATIONS


1. - Subroutine tree diagram
8
2. - SiO2 System
16
3. - MgO-SiO2 System
19
4. - CaO-SiO2 System
21
5. - System MgO-CO2
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6. - MgO-H2O System
24
7. - CaO-H2O System
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8. - Tremolite-H2O System
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9. - Temperature - gas composition diagram at PCO2 + PH2O = PTotal = 2000 bars
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10. - MgO-CO2-H2O System at 580o C and 1000 bars
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11. - MgO-CO2-H2O System at 500o C and 1000 bars
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12. - MgO-CO2-H20 System at 400o C and 1000 bars
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13. - Flow diagram for main routine
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14. - Subroutine EOLBRM flow diagram
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