The equilibrium of a specific chemical reaction cannot be in general 'changed from the outside', unless the temperature is changed accordingly. However, an equilibrium reaction may seem to be irreversible if we remove the products selectively, although I don't like the wording that you use. We are not altering the equilbrium, rather allowing the forward rate of reaction to keep marching on.
One simple application of this is a membrane catalytic reactor for dehydrogenation of alkanes. These reactions are limited by equilibrium. In the following image we can read the equilibrium conversion $X_\mathrm{eq}$ of several alkanes as a function of temperature $T$:
![enter image description here](https://cdn.statically.io/img/i.sstatic.net/2ahrA.png)
Even though the temperature is very high, more than $\pu{50 \%}$ of the reactant will just sit in the reactor if it is long enough. But, in this particular reaction we may eliminate the hydrogen gas generated through a permeable membrane, which we illustrate for ethane:
$$ \ce{C2H6(g) <=> C2H4(g) + H2(g) v} \tag{1} $$
A scheme of the procedure is the following:
![enter image description here](https://cdn.statically.io/img/i.sstatic.net/LZtu5.png)
The idea is very simple, we remove hydrogen so the reaction can continue. If we keep doing this, the reaction may seem to be irreversible as we will find a negligible amount of reactant at the end of the reactor. We will walk at the outlet of the reactor and find $\approx \pu{0 mol dm^{-3}}$ of ethane, but the reaction in inherently reversible.
As a remainder, this is a very delicate process, because it would be a huge problem if ethene or any other alkene entered the gas stream along with hydrogen. Since the wanted product is the alkene, we would further need a separation process of it an hydrogen, which would be a waste of money. The key element is the solid membrane, whose structure must not intefere with the reaction and only serve the purpose for the small hydrogen molecules to pass through them via a mass transport process.
References
The $X_\mathrm{eq}$ vs $T$ graph was taken from:
The image of the membrane catalytic reactor is found in this work:
- Shelepova, E. & Vedyagin, Aleksey. (2021). Theoretical Prediction of the Efficiency of Hydrogen Production via Alkane Dehydrogenation in Catalytic Membrane Reactor. Hydrogen. 2. 362-376. 10.3390/hydrogen2030019.