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Catalyst Deactivation Kinetics Calculator

Easily calculate and compute catalyst deactivation kinetics calculator with accurate equations, live formulas, and expert guidance.

Fresh catalyst normalized activity (1.0).

Activity decay rate constant.

Operating run time.

Order (1 = poisoning/coking, 2 = sintering).

Calculated Result
0.53 fraction

Residual Relative Activity a(t)

Residual Relative Activity a(t)

0.53 fraction

Residual Activity

0.5263157894736842

Activity Loss Pct

47.36842105263158

Half Life Days

66.66666666666667

Time On Stream Days

60

0.53 — fraction

Calculation Breakdown

  1. Applied FormulaModels catalyst activity decay over time on stream caused by thermal crystallite sintering (second-order d=2) and carbonaceous coking deactivation.-\frac{da}{dt} = k_d a^d, \quad a(t) = \left[ 1 + (d - 1) k_d t \right]^{\frac{1}{1 - d}}

Catalyst Deactivation Decay Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.00.30.50.81.0Residual Relative Activity a(t)

What Is the Catalyst Deactivation Kinetics Calculator?

This tool computes catalyst deactivation kinetics calculator with high precision arithmetic.

How Does the Catalyst Deactivation Kinetics Calculator Work?

Models catalyst activity decay over time on stream caused by thermal crystallite sintering (second-order d=2) and carbonaceous coking deactivation.

Catalyst Deactivation Kinetics Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

−dadt=kdad,a(t)=[1+(d−1)kdt]11−d-\frac{da}{dt} = k_d a^d, \quad a(t) = \left[ 1 + (d - 1) k_d t \right]^{\frac{1}{1 - d}}

Models catalyst activity decay over time on stream caused by thermal crystallite sintering (second-order d=2) and carbonaceous coking deactivation.

How to Use the Catalyst Deactivation Kinetics Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Catalyst Deactivation Kinetics Calculator Example

Input Values:

initialActivity:1
deactivationRateConstantPerDay:0.015
timeOnStreamDays:60
deactivationOrderD:2
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required fraction.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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